2025/06/17 - AWS Network Firewall - 1 new8 updated api methods
Changes Release of Active Threat Defense in Network Firewall
Returns detailed information for a stateful rule group.
For active threat defense Amazon Web Services managed rule groups, this operation provides insight into the protections enabled by the rule group, based on Suricata rule metadata fields. Summaries are available for rule groups you manage and for active threat defense Amazon Web Services managed rule groups.
To modify how threat information appears in summaries, use the SummaryConfiguration parameter in UpdateRuleGroup.
See also: AWS API Documentation
Request Syntax
client.describe_rule_group_summary(
RuleGroupName='string',
RuleGroupArn='string',
Type='STATELESS'|'STATEFUL'
)
string
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
You must specify the ARN or the name, and you can specify both.
string
Required. The Amazon Resource Name (ARN) of the rule group.
You must specify the ARN or the name, and you can specify both.
string
The type of rule group you want a summary for. This is a required field.
Valid value: STATEFUL
Note that STATELESS exists but is not currently supported. If you provide STATELESS, an exception is returned.
dict
Response Syntax
{
'RuleGroupName': 'string',
'Description': 'string',
'Summary': {
'RuleSummaries': [
{
'SID': 'string',
'Msg': 'string',
'Metadata': 'string'
},
]
}
}
Response Structure
(dict) --
RuleGroupName (string) --
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
Description (string) --
A description of the rule group.
Summary (dict) --
A complex type that contains rule information based on the rule group's configured summary settings. The content varies depending on the fields that you specified to extract in your SummaryConfiguration. When you haven't configured any summary settings, this returns an empty array. The response might include:
Rule identifiers
Rule descriptions
Any metadata fields that you specified in your SummaryConfiguration
RuleSummaries (list) --
An array of RuleSummary objects containing individual rule details that had been configured by the rulegroup's SummaryConfiguration.
(dict) --
A complex type containing details about a Suricata rule. Contains:
SID
Msg
Metadata
Summaries are available for rule groups you manage and for active threat defense Amazon Web Services managed rule groups.
SID (string) --
The unique identifier (Signature ID) of the Suricata rule.
Msg (string) --
The contents taken from the rule's msg field.
Metadata (string) --
The contents of the rule's metadata.
{'FirewallPolicy': {'StatefulRuleGroupReferences': {'DeepThreatInspection': 'boolean'}}}
Creates the firewall policy for the firewall according to the specifications.
An Network Firewall firewall policy defines the behavior of a firewall, in a collection of stateless and stateful rule groups and other settings. You can use one firewall policy for multiple firewalls.
See also: AWS API Documentation
Request Syntax
client.create_firewall_policy(
FirewallPolicyName='string',
FirewallPolicy={
'StatelessRuleGroupReferences': [
{
'ResourceArn': 'string',
'Priority': 123
},
],
'StatelessDefaultActions': [
'string',
],
'StatelessFragmentDefaultActions': [
'string',
],
'StatelessCustomActions': [
{
'ActionName': 'string',
'ActionDefinition': {
'PublishMetricAction': {
'Dimensions': [
{
'Value': 'string'
},
]
}
}
},
],
'StatefulRuleGroupReferences': [
{
'ResourceArn': 'string',
'Priority': 123,
'Override': {
'Action': 'DROP_TO_ALERT'
},
'DeepThreatInspection': True|False
},
],
'StatefulDefaultActions': [
'string',
],
'StatefulEngineOptions': {
'RuleOrder': 'DEFAULT_ACTION_ORDER'|'STRICT_ORDER',
'StreamExceptionPolicy': 'DROP'|'CONTINUE'|'REJECT',
'FlowTimeouts': {
'TcpIdleTimeoutSeconds': 123
}
},
'TLSInspectionConfigurationArn': 'string',
'PolicyVariables': {
'RuleVariables': {
'string': {
'Definition': [
'string',
]
}
}
}
},
Description='string',
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
DryRun=True|False,
EncryptionConfiguration={
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
}
)
string
[REQUIRED]
The descriptive name of the firewall policy. You can't change the name of a firewall policy after you create it.
dict
[REQUIRED]
The rule groups and policy actions to use in the firewall policy.
StatelessRuleGroupReferences (list) --
References to the stateless rule groups that are used in the policy. These define the matching criteria in stateless rules.
(dict) --
Identifier for a single stateless rule group, used in a firewall policy to refer to the rule group.
ResourceArn (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the stateless rule group.
Priority (integer) -- [REQUIRED]
An integer setting that indicates the order in which to run the stateless rule groups in a single FirewallPolicy. Network Firewall applies each stateless rule group to a packet starting with the group that has the lowest priority setting. You must ensure that the priority settings are unique within each policy.
StatelessDefaultActions (list) -- [REQUIRED]
The actions to take on a packet if it doesn't match any of the stateless rules in the policy. If you want non-matching packets to be forwarded for stateful inspection, specify aws:forward_to_sfe.
You must specify one of the standard actions: aws:pass, aws:drop, or aws:forward_to_sfe. In addition, you can specify custom actions that are compatible with your standard section choice.
For example, you could specify ["aws:pass"] or you could specify ["aws:pass", “customActionName”]. For information about compatibility, see the custom action descriptions under CustomAction.
(string) --
StatelessFragmentDefaultActions (list) -- [REQUIRED]
The actions to take on a fragmented UDP packet if it doesn't match any of the stateless rules in the policy. Network Firewall only manages UDP packet fragments and silently drops packet fragments for other protocols. If you want non-matching fragmented UDP packets to be forwarded for stateful inspection, specify aws:forward_to_sfe.
You must specify one of the standard actions: aws:pass, aws:drop, or aws:forward_to_sfe. In addition, you can specify custom actions that are compatible with your standard section choice.
For example, you could specify ["aws:pass"] or you could specify ["aws:pass", “customActionName”]. For information about compatibility, see the custom action descriptions under CustomAction.
(string) --
StatelessCustomActions (list) --
The custom action definitions that are available for use in the firewall policy's StatelessDefaultActions setting. You name each custom action that you define, and then you can use it by name in your default actions specifications.
(dict) --
An optional, non-standard action to use for stateless packet handling. You can define this in addition to the standard action that you must specify.
You define and name the custom actions that you want to be able to use, and then you reference them by name in your actions settings.
You can use custom actions in the following places:
In a rule group's StatelessRulesAndCustomActions specification. The custom actions are available for use by name inside the StatelessRulesAndCustomActions where you define them. You can use them for your stateless rule actions to specify what to do with a packet that matches the rule's match attributes.
In a FirewallPolicy specification, in StatelessCustomActions. The custom actions are available for use inside the policy where you define them. You can use them for the policy's default stateless actions settings to specify what to do with packets that don't match any of the policy's stateless rules.
ActionName (string) -- [REQUIRED]
The descriptive name of the custom action. You can't change the name of a custom action after you create it.
ActionDefinition (dict) -- [REQUIRED]
The custom action associated with the action name.
PublishMetricAction (dict) --
Stateless inspection criteria that publishes the specified metrics to Amazon CloudWatch for the matching packet. This setting defines a CloudWatch dimension value to be published.
You can pair this custom action with any of the standard stateless rule actions. For example, you could pair this in a rule action with the standard action that forwards the packet for stateful inspection. Then, when a packet matches the rule, Network Firewall publishes metrics for the packet and forwards it.
Dimensions (list) -- [REQUIRED]
(dict) --
The value to use in an Amazon CloudWatch custom metric dimension. This is used in the PublishMetrics CustomAction. A CloudWatch custom metric dimension is a name/value pair that's part of the identity of a metric.
Network Firewall sets the dimension name to CustomAction and you provide the dimension value.
For more information about CloudWatch custom metric dimensions, see Publishing Custom Metrics in the Amazon CloudWatch User Guide.
Value (string) -- [REQUIRED]
The value to use in the custom metric dimension.
StatefulRuleGroupReferences (list) --
References to the stateful rule groups that are used in the policy. These define the inspection criteria in stateful rules.
(dict) --
Identifier for a single stateful rule group, used in a firewall policy to refer to a rule group.
ResourceArn (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the stateful rule group.
Priority (integer) --
An integer setting that indicates the order in which to run the stateful rule groups in a single FirewallPolicy. This setting only applies to firewall policies that specify the STRICT_ORDER rule order in the stateful engine options settings.
Network Firewall evalutes each stateful rule group against a packet starting with the group that has the lowest priority setting. You must ensure that the priority settings are unique within each policy.
You can change the priority settings of your rule groups at any time. To make it easier to insert rule groups later, number them so there's a wide range in between, for example use 100, 200, and so on.
Override (dict) --
The action that allows the policy owner to override the behavior of the rule group within a policy.
Action (string) --
The action that changes the rule group from DROP to ALERT. This only applies to managed rule groups.
DeepThreatInspection (boolean) --
Network Firewall plans to augment the active threat defense managed rule group with an additional deep threat inspection capability. When this capability is released, Amazon Web Services will analyze service logs of network traffic processed by these rule groups to identify threat indicators across customers. Amazon Web Services will use these threat indicators to improve the active threat defense managed rule groups and protect the security of Amazon Web Services customers and services.
StatefulDefaultActions (list) --
The default actions to take on a packet that doesn't match any stateful rules. The stateful default action is optional, and is only valid when using the strict rule order.
Valid values of the stateful default action:
aws:drop_strict
aws:drop_established
aws:alert_strict
aws:alert_established
For more information, see Strict evaluation order in the Network Firewall Developer Guide.
(string) --
StatefulEngineOptions (dict) --
Additional options governing how Network Firewall handles stateful rules. The stateful rule groups that you use in your policy must have stateful rule options settings that are compatible with these settings.
RuleOrder (string) --
Indicates how to manage the order of stateful rule evaluation for the policy. STRICT_ORDER is the recommended option, but DEFAULT_ACTION_ORDER is the default option. With STRICT_ORDER, provide your rules in the order that you want them to be evaluated. You can then choose one or more default actions for packets that don't match any rules. Choose STRICT_ORDER to have the stateful rules engine determine the evaluation order of your rules. The default action for this rule order is PASS, followed by DROP, REJECT, and ALERT actions. Stateful rules are provided to the rule engine as Suricata compatible strings, and Suricata evaluates them based on your settings. For more information, see Evaluation order for stateful rules in the Network Firewall Developer Guide.
StreamExceptionPolicy (string) --
Configures how Network Firewall processes traffic when a network connection breaks midstream. Network connections can break due to disruptions in external networks or within the firewall itself.
DROP - Network Firewall fails closed and drops all subsequent traffic going to the firewall. This is the default behavior.
CONTINUE - Network Firewall continues to apply rules to the subsequent traffic without context from traffic before the break. This impacts the behavior of rules that depend on this context. For example, if you have a stateful rule to drop http traffic, Network Firewall won't match the traffic for this rule because the service won't have the context from session initialization defining the application layer protocol as HTTP. However, this behavior is rule dependent—a TCP-layer rule using a flow:stateless rule would still match, as would the aws:drop_strict default action.
REJECT - Network Firewall fails closed and drops all subsequent traffic going to the firewall. Network Firewall also sends a TCP reject packet back to your client so that the client can immediately establish a new session. Network Firewall will have context about the new session and will apply rules to the subsequent traffic.
FlowTimeouts (dict) --
Configures the amount of time that can pass without any traffic sent through the firewall before the firewall determines that the connection is idle.
TcpIdleTimeoutSeconds (integer) --
The number of seconds that can pass without any TCP traffic sent through the firewall before the firewall determines that the connection is idle. After the idle timeout passes, data packets are dropped, however, the next TCP SYN packet is considered a new flow and is processed by the firewall. Clients or targets can use TCP keepalive packets to reset the idle timeout.
You can define the TcpIdleTimeoutSeconds value to be between 60 and 6000 seconds. If no value is provided, it defaults to 350 seconds.
TLSInspectionConfigurationArn (string) --
The Amazon Resource Name (ARN) of the TLS inspection configuration.
PolicyVariables (dict) --
Contains variables that you can use to override default Suricata settings in your firewall policy.
RuleVariables (dict) --
The IPv4 or IPv6 addresses in CIDR notation to use for the Suricata HOME_NET variable. If your firewall uses an inspection VPC, you might want to override the HOME_NET variable with the CIDRs of your home networks. If you don't override HOME_NET with your own CIDRs, Network Firewall by default uses the CIDR of your inspection VPC.
(string) --
(dict) --
A list of IP addresses and address ranges, in CIDR notation. This is part of a RuleVariables.
Definition (list) -- [REQUIRED]
The list of IP addresses and address ranges, in CIDR notation.
(string) --
string
A description of the firewall policy.
list
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) -- [REQUIRED]
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) -- [REQUIRED]
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
boolean
Indicates whether you want Network Firewall to just check the validity of the request, rather than run the request.
If set to TRUE, Network Firewall checks whether the request can run successfully, but doesn't actually make the requested changes. The call returns the value that the request would return if you ran it with dry run set to FALSE, but doesn't make additions or changes to your resources. This option allows you to make sure that you have the required permissions to run the request and that your request parameters are valid.
If set to FALSE, Network Firewall makes the requested changes to your resources.
dict
A complex type that contains settings for encryption of your firewall policy resources.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) -- [REQUIRED]
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
dict
Response Syntax
{
'UpdateToken': 'string',
'FirewallPolicyResponse': {
'FirewallPolicyName': 'string',
'FirewallPolicyArn': 'string',
'FirewallPolicyId': 'string',
'Description': 'string',
'FirewallPolicyStatus': 'ACTIVE'|'DELETING'|'ERROR',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'ConsumedStatelessRuleCapacity': 123,
'ConsumedStatefulRuleCapacity': 123,
'NumberOfAssociations': 123,
'EncryptionConfiguration': {
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
'LastModifiedTime': datetime(2015, 1, 1)
}
}
Response Structure
(dict) --
UpdateToken (string) --
A token used for optimistic locking. Network Firewall returns a token to your requests that access the firewall policy. The token marks the state of the policy resource at the time of the request.
To make changes to the policy, you provide the token in your request. Network Firewall uses the token to ensure that the policy hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the firewall policy again to get a current copy of it with current token. Reapply your changes as needed, then try the operation again using the new token.
FirewallPolicyResponse (dict) --
The high-level properties of a firewall policy. This, along with the FirewallPolicy, define the policy. You can retrieve all objects for a firewall policy by calling DescribeFirewallPolicy.
FirewallPolicyName (string) --
The descriptive name of the firewall policy. You can't change the name of a firewall policy after you create it.
FirewallPolicyArn (string) --
The Amazon Resource Name (ARN) of the firewall policy.
FirewallPolicyId (string) --
The unique identifier for the firewall policy.
Description (string) --
A description of the firewall policy.
FirewallPolicyStatus (string) --
The current status of the firewall policy. You can retrieve this for a firewall policy by calling DescribeFirewallPolicy and providing the firewall policy's name or ARN.
Tags (list) --
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) --
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) --
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
ConsumedStatelessRuleCapacity (integer) --
The number of capacity units currently consumed by the policy's stateless rules.
ConsumedStatefulRuleCapacity (integer) --
The number of capacity units currently consumed by the policy's stateful rules.
NumberOfAssociations (integer) --
The number of firewalls that are associated with this firewall policy.
EncryptionConfiguration (dict) --
A complex type that contains the Amazon Web Services KMS encryption configuration settings for your firewall policy.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) --
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
LastModifiedTime (datetime) --
The last time that the firewall policy was changed.
{'SummaryConfiguration': {'RuleOptions': ['SID | MSG | METADATA']}}
Response {'RuleGroupResponse': {'SummaryConfiguration': {'RuleOptions': ['SID | MSG | '
'METADATA']}}}
Creates the specified stateless or stateful rule group, which includes the rules for network traffic inspection, a capacity setting, and tags.
You provide your rule group specification in your request using either RuleGroup or Rules.
See also: AWS API Documentation
Request Syntax
client.create_rule_group(
RuleGroupName='string',
RuleGroup={
'RuleVariables': {
'IPSets': {
'string': {
'Definition': [
'string',
]
}
},
'PortSets': {
'string': {
'Definition': [
'string',
]
}
}
},
'ReferenceSets': {
'IPSetReferences': {
'string': {
'ReferenceArn': 'string'
}
}
},
'RulesSource': {
'RulesString': 'string',
'RulesSourceList': {
'Targets': [
'string',
],
'TargetTypes': [
'TLS_SNI'|'HTTP_HOST',
],
'GeneratedRulesType': 'ALLOWLIST'|'DENYLIST'
},
'StatefulRules': [
{
'Action': 'PASS'|'DROP'|'ALERT'|'REJECT',
'Header': {
'Protocol': 'IP'|'TCP'|'UDP'|'ICMP'|'HTTP'|'FTP'|'TLS'|'SMB'|'DNS'|'DCERPC'|'SSH'|'SMTP'|'IMAP'|'MSN'|'KRB5'|'IKEV2'|'TFTP'|'NTP'|'DHCP'|'HTTP2'|'QUIC',
'Source': 'string',
'SourcePort': 'string',
'Direction': 'FORWARD'|'ANY',
'Destination': 'string',
'DestinationPort': 'string'
},
'RuleOptions': [
{
'Keyword': 'string',
'Settings': [
'string',
]
},
]
},
],
'StatelessRulesAndCustomActions': {
'StatelessRules': [
{
'RuleDefinition': {
'MatchAttributes': {
'Sources': [
{
'AddressDefinition': 'string'
},
],
'Destinations': [
{
'AddressDefinition': 'string'
},
],
'SourcePorts': [
{
'FromPort': 123,
'ToPort': 123
},
],
'DestinationPorts': [
{
'FromPort': 123,
'ToPort': 123
},
],
'Protocols': [
123,
],
'TCPFlags': [
{
'Flags': [
'FIN'|'SYN'|'RST'|'PSH'|'ACK'|'URG'|'ECE'|'CWR',
],
'Masks': [
'FIN'|'SYN'|'RST'|'PSH'|'ACK'|'URG'|'ECE'|'CWR',
]
},
]
},
'Actions': [
'string',
]
},
'Priority': 123
},
],
'CustomActions': [
{
'ActionName': 'string',
'ActionDefinition': {
'PublishMetricAction': {
'Dimensions': [
{
'Value': 'string'
},
]
}
}
},
]
}
},
'StatefulRuleOptions': {
'RuleOrder': 'DEFAULT_ACTION_ORDER'|'STRICT_ORDER'
}
},
Rules='string',
Type='STATELESS'|'STATEFUL',
Description='string',
Capacity=123,
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
DryRun=True|False,
EncryptionConfiguration={
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
SourceMetadata={
'SourceArn': 'string',
'SourceUpdateToken': 'string'
},
AnalyzeRuleGroup=True|False,
SummaryConfiguration={
'RuleOptions': [
'SID'|'MSG'|'METADATA',
]
}
)
string
[REQUIRED]
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
dict
An object that defines the rule group rules.
RuleVariables (dict) --
Settings that are available for use in the rules in the rule group. You can only use these for stateful rule groups.
IPSets (dict) --
A list of IP addresses and address ranges, in CIDR notation.
(string) --
(dict) --
A list of IP addresses and address ranges, in CIDR notation. This is part of a RuleVariables.
Definition (list) -- [REQUIRED]
The list of IP addresses and address ranges, in CIDR notation.
(string) --
PortSets (dict) --
A list of port ranges.
(string) --
(dict) --
A set of port ranges for use in the rules in a rule group.
Definition (list) --
The set of port ranges.
(string) --
ReferenceSets (dict) --
The list of a rule group's reference sets.
IPSetReferences (dict) --
The list of IP set references.
(string) --
(dict) --
Configures one or more IP set references for a Suricata-compatible rule group. This is used in CreateRuleGroup or UpdateRuleGroup. An IP set reference is a rule variable that references resources that you create and manage in another Amazon Web Services service, such as an Amazon VPC prefix list. Network Firewall IP set references enable you to dynamically update the contents of your rules. When you create, update, or delete the resource you are referencing in your rule, Network Firewall automatically updates the rule's content with the changes. For more information about IP set references in Network Firewall, see Using IP set references in the Network Firewall Developer Guide.
Network Firewall currently supports Amazon VPC prefix lists and resource groups in IP set references.
ReferenceArn (string) --
The Amazon Resource Name (ARN) of the resource that you are referencing in your rule group.
RulesSource (dict) -- [REQUIRED]
The stateful rules or stateless rules for the rule group.
RulesString (string) --
Stateful inspection criteria, provided in Suricata compatible rules. Suricata is an open-source threat detection framework that includes a standard rule-based language for network traffic inspection.
These rules contain the inspection criteria and the action to take for traffic that matches the criteria, so this type of rule group doesn't have a separate action setting.
RulesSourceList (dict) --
Stateful inspection criteria for a domain list rule group.
Targets (list) -- [REQUIRED]
The domains that you want to inspect for in your traffic flows. Valid domain specifications are the following:
Explicit names. For example, abc.example.com matches only the domain abc.example.com.
Names that use a domain wildcard, which you indicate with an initial ' .'. For example, .example.com matches example.com and matches all subdomains of example.com, such as abc.example.com and www.example.com.
(string) --
TargetTypes (list) -- [REQUIRED]
The protocols you want to inspect. Specify TLS_SNI for HTTPS. Specify HTTP_HOST for HTTP. You can specify either or both.
(string) --
GeneratedRulesType (string) -- [REQUIRED]
Whether you want to allow or deny access to the domains in your target list.
StatefulRules (list) --
An array of individual stateful rules inspection criteria to be used together in a stateful rule group. Use this option to specify simple Suricata rules with protocol, source and destination, ports, direction, and rule options. For information about the Suricata Rules format, see Rules Format.
(dict) --
A single Suricata rules specification, for use in a stateful rule group. Use this option to specify a simple Suricata rule with protocol, source and destination, ports, direction, and rule options. For information about the Suricata Rules format, see Rules Format.
Action (string) -- [REQUIRED]
Defines what Network Firewall should do with the packets in a traffic flow when the flow matches the stateful rule criteria. For all actions, Network Firewall performs the specified action and discontinues stateful inspection of the traffic flow.
The actions for a stateful rule are defined as follows:
PASS - Permits the packets to go to the intended destination.
DROP - Blocks the packets from going to the intended destination and sends an alert log message, if alert logging is configured in the Firewall LoggingConfiguration.
ALERT - Sends an alert log message, if alert logging is configured in the Firewall LoggingConfiguration. You can use this action to test a rule that you intend to use to drop traffic. You can enable the rule with ALERT action, verify in the logs that the rule is filtering as you want, then change the action to DROP.
REJECT - Drops traffic that matches the conditions of the stateful rule, and sends a TCP reset packet back to sender of the packet. A TCP reset packet is a packet with no payload and an RST bit contained in the TCP header flags. REJECT is available only for TCP traffic. This option doesn't support FTP or IMAP protocols.
Header (dict) -- [REQUIRED]
The stateful inspection criteria for this rule, used to inspect traffic flows.
Protocol (string) -- [REQUIRED]
The protocol to inspect for. To specify all, you can use IP, because all traffic on Amazon Web Services and on the internet is IP.
Source (string) -- [REQUIRED]
The source IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
SourcePort (string) -- [REQUIRED]
The source port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
Direction (string) -- [REQUIRED]
The direction of traffic flow to inspect. If set to ANY, the inspection matches bidirectional traffic, both from the source to the destination and from the destination to the source. If set to FORWARD, the inspection only matches traffic going from the source to the destination.
Destination (string) -- [REQUIRED]
The destination IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
DestinationPort (string) -- [REQUIRED]
The destination port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
RuleOptions (list) -- [REQUIRED]
Additional options for the rule. These are the Suricata RuleOptions settings.
(dict) --
Additional settings for a stateful rule. This is part of the StatefulRule configuration.
Keyword (string) -- [REQUIRED]
The keyword for the Suricata compatible rule option. You must include a sid (signature ID), and can optionally include other keywords. For information about Suricata compatible keywords, see Rule options in the Suricata documentation.
Settings (list) --
The settings of the Suricata compatible rule option. Rule options have zero or more setting values, and the number of possible and required settings depends on the Keyword. For more information about the settings for specific options, see Rule options.
(string) --
StatelessRulesAndCustomActions (dict) --
Stateless inspection criteria to be used in a stateless rule group.
StatelessRules (list) -- [REQUIRED]
Defines the set of stateless rules for use in a stateless rule group.
(dict) --
A single stateless rule. This is used in StatelessRulesAndCustomActions.
RuleDefinition (dict) -- [REQUIRED]
Defines the stateless 5-tuple packet inspection criteria and the action to take on a packet that matches the criteria.
MatchAttributes (dict) -- [REQUIRED]
Criteria for Network Firewall to use to inspect an individual packet in stateless rule inspection. Each match attributes set can include one or more items such as IP address, CIDR range, port number, protocol, and TCP flags.
Sources (list) --
The source IP addresses and address ranges to inspect for, in CIDR notation. If not specified, this matches with any source address.
(dict) --
A single IP address specification. This is used in the MatchAttributes source and destination specifications.
AddressDefinition (string) -- [REQUIRED]
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
Destinations (list) --
The destination IP addresses and address ranges to inspect for, in CIDR notation. If not specified, this matches with any destination address.
(dict) --
A single IP address specification. This is used in the MatchAttributes source and destination specifications.
AddressDefinition (string) -- [REQUIRED]
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
SourcePorts (list) --
The source port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
If not specified, this matches with any source port.
This setting is only used for protocols 6 (TCP) and 17 (UDP).
(dict) --
A single port range specification. This is used for source and destination port ranges in the stateless rule MatchAttributes, SourcePorts, and DestinationPorts settings.
FromPort (integer) -- [REQUIRED]
The lower limit of the port range. This must be less than or equal to the ToPort specification.
ToPort (integer) -- [REQUIRED]
The upper limit of the port range. This must be greater than or equal to the FromPort specification.
DestinationPorts (list) --
The destination port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
This setting is only used for protocols 6 (TCP) and 17 (UDP).
(dict) --
A single port range specification. This is used for source and destination port ranges in the stateless rule MatchAttributes, SourcePorts, and DestinationPorts settings.
FromPort (integer) -- [REQUIRED]
The lower limit of the port range. This must be less than or equal to the ToPort specification.
ToPort (integer) -- [REQUIRED]
The upper limit of the port range. This must be greater than or equal to the FromPort specification.
Protocols (list) --
The protocols to inspect for, specified using the assigned internet protocol number (IANA) for each protocol. If not specified, this matches with any protocol.
(integer) --
TCPFlags (list) --
The TCP flags and masks to inspect for. If not specified, this matches with any settings. This setting is only used for protocol 6 (TCP).
(dict) --
TCP flags and masks to inspect packets for, used in stateless rules MatchAttributes settings.
Flags (list) -- [REQUIRED]
Used in conjunction with the Masks setting to define the flags that must be set and flags that must not be set in order for the packet to match. This setting can only specify values that are also specified in the Masks setting.
For the flags that are specified in the masks setting, the following must be true for the packet to match:
The ones that are set in this flags setting must be set in the packet.
The ones that are not set in this flags setting must also not be set in the packet.
(string) --
Masks (list) --
The set of flags to consider in the inspection. To inspect all flags in the valid values list, leave this with no setting.
(string) --
Actions (list) -- [REQUIRED]
The actions to take on a packet that matches one of the stateless rule definition's match attributes. You must specify a standard action and you can add custom actions.
For every rule, you must specify exactly one of the following standard actions.
aws:pass - Discontinues all inspection of the packet and permits it to go to its intended destination.
aws:drop - Discontinues all inspection of the packet and blocks it from going to its intended destination.
aws:forward_to_sfe - Discontinues stateless inspection of the packet and forwards it to the stateful rule engine for inspection.
Additionally, you can specify a custom action. To do this, you define a custom action by name and type, then provide the name you've assigned to the action in this Actions setting. For information about the options, see CustomAction.
To provide more than one action in this setting, separate the settings with a comma. For example, if you have a custom PublishMetrics action that you've named MyMetricsAction, then you could specify the standard action aws:pass and the custom action with [“aws:pass”, “MyMetricsAction”].
(string) --
Priority (integer) -- [REQUIRED]
Indicates the order in which to run this rule relative to all of the rules that are defined for a stateless rule group. Network Firewall evaluates the rules in a rule group starting with the lowest priority setting. You must ensure that the priority settings are unique for the rule group.
Each stateless rule group uses exactly one StatelessRulesAndCustomActions object, and each StatelessRulesAndCustomActions contains exactly one StatelessRules object. To ensure unique priority settings for your rule groups, set unique priorities for the stateless rules that you define inside any single StatelessRules object.
You can change the priority settings of your rules at any time. To make it easier to insert rules later, number them so there's a wide range in between, for example use 100, 200, and so on.
CustomActions (list) --
Defines an array of individual custom action definitions that are available for use by the stateless rules in this StatelessRulesAndCustomActions specification. You name each custom action that you define, and then you can use it by name in your StatelessRule RuleDefinition Actions specification.
(dict) --
An optional, non-standard action to use for stateless packet handling. You can define this in addition to the standard action that you must specify.
You define and name the custom actions that you want to be able to use, and then you reference them by name in your actions settings.
You can use custom actions in the following places:
In a rule group's StatelessRulesAndCustomActions specification. The custom actions are available for use by name inside the StatelessRulesAndCustomActions where you define them. You can use them for your stateless rule actions to specify what to do with a packet that matches the rule's match attributes.
In a FirewallPolicy specification, in StatelessCustomActions. The custom actions are available for use inside the policy where you define them. You can use them for the policy's default stateless actions settings to specify what to do with packets that don't match any of the policy's stateless rules.
ActionName (string) -- [REQUIRED]
The descriptive name of the custom action. You can't change the name of a custom action after you create it.
ActionDefinition (dict) -- [REQUIRED]
The custom action associated with the action name.
PublishMetricAction (dict) --
Stateless inspection criteria that publishes the specified metrics to Amazon CloudWatch for the matching packet. This setting defines a CloudWatch dimension value to be published.
You can pair this custom action with any of the standard stateless rule actions. For example, you could pair this in a rule action with the standard action that forwards the packet for stateful inspection. Then, when a packet matches the rule, Network Firewall publishes metrics for the packet and forwards it.
Dimensions (list) -- [REQUIRED]
(dict) --
The value to use in an Amazon CloudWatch custom metric dimension. This is used in the PublishMetrics CustomAction. A CloudWatch custom metric dimension is a name/value pair that's part of the identity of a metric.
Network Firewall sets the dimension name to CustomAction and you provide the dimension value.
For more information about CloudWatch custom metric dimensions, see Publishing Custom Metrics in the Amazon CloudWatch User Guide.
Value (string) -- [REQUIRED]
The value to use in the custom metric dimension.
StatefulRuleOptions (dict) --
Additional options governing how Network Firewall handles stateful rules. The policies where you use your stateful rule group must have stateful rule options settings that are compatible with these settings. Some limitations apply; for more information, see Strict evaluation order in the Network Firewall Developer Guide.
RuleOrder (string) --
Indicates how to manage the order of the rule evaluation for the rule group. DEFAULT_ACTION_ORDER is the default behavior. Stateful rules are provided to the rule engine as Suricata compatible strings, and Suricata evaluates them based on certain settings. For more information, see Evaluation order for stateful rules in the Network Firewall Developer Guide.
string
A string containing stateful rule group rules specifications in Suricata flat format, with one rule per line. Use this to import your existing Suricata compatible rule groups.
You can provide your rule group specification in Suricata flat format through this setting when you create or update your rule group. The call response returns a RuleGroup object that Network Firewall has populated from your string.
string
[REQUIRED]
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
string
A description of the rule group.
integer
[REQUIRED]
The maximum operating resources that this rule group can use. Rule group capacity is fixed at creation. When you update a rule group, you are limited to this capacity. When you reference a rule group from a firewall policy, Network Firewall reserves this capacity for the rule group.
You can retrieve the capacity that would be required for a rule group before you create the rule group by calling CreateRuleGroup with DryRun set to TRUE.
Capacity for a stateless rule group
For a stateless rule group, the capacity required is the sum of the capacity requirements of the individual rules that you expect to have in the rule group.
To calculate the capacity requirement of a single rule, multiply the capacity requirement values of each of the rule's match settings:
A match setting with no criteria specified has a value of 1.
A match setting with Any specified has a value of 1.
All other match settings have a value equal to the number of elements provided in the setting. For example, a protocol setting ["UDP"] and a source setting ["10.0.0.0/24"] each have a value of 1. A protocol setting ["UDP","TCP"] has a value of 2. A source setting ["10.0.0.0/24","10.0.0.1/24","10.0.0.2/24"] has a value of 3.
A rule with no criteria specified in any of its match settings has a capacity requirement of 1. A rule with protocol setting ["UDP","TCP"], source setting ["10.0.0.0/24","10.0.0.1/24","10.0.0.2/24"], and a single specification or no specification for each of the other match settings has a capacity requirement of 6.
Capacity for a stateful rule group
For a stateful rule group, the minimum capacity required is the number of individual rules that you expect to have in the rule group.
list
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) -- [REQUIRED]
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) -- [REQUIRED]
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
boolean
Indicates whether you want Network Firewall to just check the validity of the request, rather than run the request.
If set to TRUE, Network Firewall checks whether the request can run successfully, but doesn't actually make the requested changes. The call returns the value that the request would return if you ran it with dry run set to FALSE, but doesn't make additions or changes to your resources. This option allows you to make sure that you have the required permissions to run the request and that your request parameters are valid.
If set to FALSE, Network Firewall makes the requested changes to your resources.
dict
A complex type that contains settings for encryption of your rule group resources.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) -- [REQUIRED]
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
dict
A complex type that contains metadata about the rule group that your own rule group is copied from. You can use the metadata to keep track of updates made to the originating rule group.
SourceArn (string) --
The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
SourceUpdateToken (string) --
The update token of the Amazon Web Services managed rule group that your own rule group is copied from. To determine the update token for the managed rule group, call DescribeRuleGroup.
boolean
Indicates whether you want Network Firewall to analyze the stateless rules in the rule group for rule behavior such as asymmetric routing. If set to TRUE, Network Firewall runs the analysis and then creates the rule group for you. To run the stateless rule group analyzer without creating the rule group, set DryRun to TRUE.
dict
An object that contains a RuleOptions array of strings. You use RuleOptions to determine which of the following RuleSummary values are returned in response to DescribeRuleGroupSummary.
Metadata - returns
Msg
SID
RuleOptions (list) --
Specifies the selected rule options returned by DescribeRuleGroupSummary.
(string) --
dict
Response Syntax
{
'UpdateToken': 'string',
'RuleGroupResponse': {
'RuleGroupArn': 'string',
'RuleGroupName': 'string',
'RuleGroupId': 'string',
'Description': 'string',
'Type': 'STATELESS'|'STATEFUL',
'Capacity': 123,
'RuleGroupStatus': 'ACTIVE'|'DELETING'|'ERROR',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'ConsumedCapacity': 123,
'NumberOfAssociations': 123,
'EncryptionConfiguration': {
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
'SourceMetadata': {
'SourceArn': 'string',
'SourceUpdateToken': 'string'
},
'SnsTopic': 'string',
'LastModifiedTime': datetime(2015, 1, 1),
'AnalysisResults': [
{
'IdentifiedRuleIds': [
'string',
],
'IdentifiedType': 'STATELESS_RULE_FORWARDING_ASYMMETRICALLY'|'STATELESS_RULE_CONTAINS_TCP_FLAGS',
'AnalysisDetail': 'string'
},
],
'SummaryConfiguration': {
'RuleOptions': [
'SID'|'MSG'|'METADATA',
]
}
}
}
Response Structure
(dict) --
UpdateToken (string) --
A token used for optimistic locking. Network Firewall returns a token to your requests that access the rule group. The token marks the state of the rule group resource at the time of the request.
To make changes to the rule group, you provide the token in your request. Network Firewall uses the token to ensure that the rule group hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the rule group again to get a current copy of it with a current token. Reapply your changes as needed, then try the operation again using the new token.
RuleGroupResponse (dict) --
The high-level properties of a rule group. This, along with the RuleGroup, define the rule group. You can retrieve all objects for a rule group by calling DescribeRuleGroup.
RuleGroupArn (string) --
The Amazon Resource Name (ARN) of the rule group.
RuleGroupName (string) --
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
RuleGroupId (string) --
The unique identifier for the rule group.
Description (string) --
A description of the rule group.
Type (string) --
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
Capacity (integer) --
The maximum operating resources that this rule group can use. Rule group capacity is fixed at creation. When you update a rule group, you are limited to this capacity. When you reference a rule group from a firewall policy, Network Firewall reserves this capacity for the rule group.
You can retrieve the capacity that would be required for a rule group before you create the rule group by calling CreateRuleGroup with DryRun set to TRUE.
RuleGroupStatus (string) --
Detailed information about the current status of a rule group.
Tags (list) --
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) --
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) --
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
ConsumedCapacity (integer) --
The number of capacity units currently consumed by the rule group rules.
NumberOfAssociations (integer) --
The number of firewall policies that use this rule group.
EncryptionConfiguration (dict) --
A complex type that contains the Amazon Web Services KMS encryption configuration settings for your rule group.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) --
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
SourceMetadata (dict) --
A complex type that contains metadata about the rule group that your own rule group is copied from. You can use the metadata to track the version updates made to the originating rule group.
SourceArn (string) --
The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
SourceUpdateToken (string) --
The update token of the Amazon Web Services managed rule group that your own rule group is copied from. To determine the update token for the managed rule group, call DescribeRuleGroup.
SnsTopic (string) --
The Amazon Resource Name (ARN) of the Amazon Simple Notification Service SNS topic that's used to record changes to the managed rule group. You can subscribe to the SNS topic to receive notifications when the managed rule group is modified, such as for new versions and for version expiration. For more information, see the Amazon Simple Notification Service Developer Guide..
LastModifiedTime (datetime) --
The last time that the rule group was changed.
AnalysisResults (list) --
The list of analysis results for AnalyzeRuleGroup. If you set AnalyzeRuleGroup to TRUE in CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup, Network Firewall analyzes the rule group and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in the list of analysis results.
(dict) --
The analysis result for Network Firewall's stateless rule group analyzer. Every time you call CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup on a stateless rule group, Network Firewall analyzes the stateless rule groups in your account and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in a list of analysis results.
The AnalysisResult data type is not related to traffic analysis reports you generate using StartAnalysisReport. For information on traffic analysis report results, see AnalysisTypeReportResult.
IdentifiedRuleIds (list) --
The priority number of the stateless rules identified in the analysis.
(string) --
IdentifiedType (string) --
The types of rule configurations that Network Firewall analyzes your rule groups for. Network Firewall analyzes stateless rule groups for the following types of rule configurations:
STATELESS_RULE_FORWARDING_ASYMMETRICALLY Cause: One or more stateless rules with the action pass or forward are forwarding traffic asymmetrically. Specifically, the rule's set of source IP addresses or their associated port numbers, don't match the set of destination IP addresses or their associated port numbers. To mitigate: Make sure that there's an existing return path. For example, if the rule allows traffic from source 10.1.0.0/24 to destination 20.1.0.0/24, you should allow return traffic from source 20.1.0.0/24 to destination 10.1.0.0/24.
STATELESS_RULE_CONTAINS_TCP_FLAGS Cause: At least one stateless rule with the action pass or forward contains TCP flags that are inconsistent in the forward and return directions. To mitigate: Prevent asymmetric routing issues caused by TCP flags by following these actions:
Remove unnecessary TCP flag inspections from the rules.
If you need to inspect TCP flags, check that the rules correctly account for changes in TCP flags throughout the TCP connection cycle, for example SYN and ACK flags used in a 3-way TCP handshake.
AnalysisDetail (string) --
Provides analysis details for the identified rule.
SummaryConfiguration (dict) --
A complex type containing the currently selected rule option fields that will be displayed for rule summarization returned by DescribeRuleGroupSummary.
The RuleOptions specified in SummaryConfiguration
Rule metadata organization preferences
RuleOptions (list) --
Specifies the selected rule options returned by DescribeRuleGroupSummary.
(string) --
{'RuleGroupResponse': {'SummaryConfiguration': {'RuleOptions': ['SID | MSG | '
'METADATA']}}}
Deletes the specified RuleGroup.
See also: AWS API Documentation
Request Syntax
client.delete_rule_group(
RuleGroupName='string',
RuleGroupArn='string',
Type='STATELESS'|'STATEFUL'
)
string
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
You must specify the ARN or the name, and you can specify both.
string
The Amazon Resource Name (ARN) of the rule group.
You must specify the ARN or the name, and you can specify both.
string
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
dict
Response Syntax
{
'RuleGroupResponse': {
'RuleGroupArn': 'string',
'RuleGroupName': 'string',
'RuleGroupId': 'string',
'Description': 'string',
'Type': 'STATELESS'|'STATEFUL',
'Capacity': 123,
'RuleGroupStatus': 'ACTIVE'|'DELETING'|'ERROR',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'ConsumedCapacity': 123,
'NumberOfAssociations': 123,
'EncryptionConfiguration': {
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
'SourceMetadata': {
'SourceArn': 'string',
'SourceUpdateToken': 'string'
},
'SnsTopic': 'string',
'LastModifiedTime': datetime(2015, 1, 1),
'AnalysisResults': [
{
'IdentifiedRuleIds': [
'string',
],
'IdentifiedType': 'STATELESS_RULE_FORWARDING_ASYMMETRICALLY'|'STATELESS_RULE_CONTAINS_TCP_FLAGS',
'AnalysisDetail': 'string'
},
],
'SummaryConfiguration': {
'RuleOptions': [
'SID'|'MSG'|'METADATA',
]
}
}
}
Response Structure
(dict) --
RuleGroupResponse (dict) --
The high-level properties of a rule group. This, along with the RuleGroup, define the rule group. You can retrieve all objects for a rule group by calling DescribeRuleGroup.
RuleGroupArn (string) --
The Amazon Resource Name (ARN) of the rule group.
RuleGroupName (string) --
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
RuleGroupId (string) --
The unique identifier for the rule group.
Description (string) --
A description of the rule group.
Type (string) --
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
Capacity (integer) --
The maximum operating resources that this rule group can use. Rule group capacity is fixed at creation. When you update a rule group, you are limited to this capacity. When you reference a rule group from a firewall policy, Network Firewall reserves this capacity for the rule group.
You can retrieve the capacity that would be required for a rule group before you create the rule group by calling CreateRuleGroup with DryRun set to TRUE.
RuleGroupStatus (string) --
Detailed information about the current status of a rule group.
Tags (list) --
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) --
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) --
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
ConsumedCapacity (integer) --
The number of capacity units currently consumed by the rule group rules.
NumberOfAssociations (integer) --
The number of firewall policies that use this rule group.
EncryptionConfiguration (dict) --
A complex type that contains the Amazon Web Services KMS encryption configuration settings for your rule group.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) --
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
SourceMetadata (dict) --
A complex type that contains metadata about the rule group that your own rule group is copied from. You can use the metadata to track the version updates made to the originating rule group.
SourceArn (string) --
The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
SourceUpdateToken (string) --
The update token of the Amazon Web Services managed rule group that your own rule group is copied from. To determine the update token for the managed rule group, call DescribeRuleGroup.
SnsTopic (string) --
The Amazon Resource Name (ARN) of the Amazon Simple Notification Service SNS topic that's used to record changes to the managed rule group. You can subscribe to the SNS topic to receive notifications when the managed rule group is modified, such as for new versions and for version expiration. For more information, see the Amazon Simple Notification Service Developer Guide..
LastModifiedTime (datetime) --
The last time that the rule group was changed.
AnalysisResults (list) --
The list of analysis results for AnalyzeRuleGroup. If you set AnalyzeRuleGroup to TRUE in CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup, Network Firewall analyzes the rule group and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in the list of analysis results.
(dict) --
The analysis result for Network Firewall's stateless rule group analyzer. Every time you call CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup on a stateless rule group, Network Firewall analyzes the stateless rule groups in your account and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in a list of analysis results.
The AnalysisResult data type is not related to traffic analysis reports you generate using StartAnalysisReport. For information on traffic analysis report results, see AnalysisTypeReportResult.
IdentifiedRuleIds (list) --
The priority number of the stateless rules identified in the analysis.
(string) --
IdentifiedType (string) --
The types of rule configurations that Network Firewall analyzes your rule groups for. Network Firewall analyzes stateless rule groups for the following types of rule configurations:
STATELESS_RULE_FORWARDING_ASYMMETRICALLY Cause: One or more stateless rules with the action pass or forward are forwarding traffic asymmetrically. Specifically, the rule's set of source IP addresses or their associated port numbers, don't match the set of destination IP addresses or their associated port numbers. To mitigate: Make sure that there's an existing return path. For example, if the rule allows traffic from source 10.1.0.0/24 to destination 20.1.0.0/24, you should allow return traffic from source 20.1.0.0/24 to destination 10.1.0.0/24.
STATELESS_RULE_CONTAINS_TCP_FLAGS Cause: At least one stateless rule with the action pass or forward contains TCP flags that are inconsistent in the forward and return directions. To mitigate: Prevent asymmetric routing issues caused by TCP flags by following these actions:
Remove unnecessary TCP flag inspections from the rules.
If you need to inspect TCP flags, check that the rules correctly account for changes in TCP flags throughout the TCP connection cycle, for example SYN and ACK flags used in a 3-way TCP handshake.
AnalysisDetail (string) --
Provides analysis details for the identified rule.
SummaryConfiguration (dict) --
A complex type containing the currently selected rule option fields that will be displayed for rule summarization returned by DescribeRuleGroupSummary.
The RuleOptions specified in SummaryConfiguration
Rule metadata organization preferences
RuleOptions (list) --
Specifies the selected rule options returned by DescribeRuleGroupSummary.
(string) --
{'FirewallPolicy': {'StatefulRuleGroupReferences': {'DeepThreatInspection': 'boolean'}}}
Returns the data objects for the specified firewall policy.
See also: AWS API Documentation
Request Syntax
client.describe_firewall_policy(
FirewallPolicyName='string',
FirewallPolicyArn='string'
)
string
The descriptive name of the firewall policy. You can't change the name of a firewall policy after you create it.
You must specify the ARN or the name, and you can specify both.
string
The Amazon Resource Name (ARN) of the firewall policy.
You must specify the ARN or the name, and you can specify both.
dict
Response Syntax
{
'UpdateToken': 'string',
'FirewallPolicyResponse': {
'FirewallPolicyName': 'string',
'FirewallPolicyArn': 'string',
'FirewallPolicyId': 'string',
'Description': 'string',
'FirewallPolicyStatus': 'ACTIVE'|'DELETING'|'ERROR',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'ConsumedStatelessRuleCapacity': 123,
'ConsumedStatefulRuleCapacity': 123,
'NumberOfAssociations': 123,
'EncryptionConfiguration': {
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
'LastModifiedTime': datetime(2015, 1, 1)
},
'FirewallPolicy': {
'StatelessRuleGroupReferences': [
{
'ResourceArn': 'string',
'Priority': 123
},
],
'StatelessDefaultActions': [
'string',
],
'StatelessFragmentDefaultActions': [
'string',
],
'StatelessCustomActions': [
{
'ActionName': 'string',
'ActionDefinition': {
'PublishMetricAction': {
'Dimensions': [
{
'Value': 'string'
},
]
}
}
},
],
'StatefulRuleGroupReferences': [
{
'ResourceArn': 'string',
'Priority': 123,
'Override': {
'Action': 'DROP_TO_ALERT'
},
'DeepThreatInspection': True|False
},
],
'StatefulDefaultActions': [
'string',
],
'StatefulEngineOptions': {
'RuleOrder': 'DEFAULT_ACTION_ORDER'|'STRICT_ORDER',
'StreamExceptionPolicy': 'DROP'|'CONTINUE'|'REJECT',
'FlowTimeouts': {
'TcpIdleTimeoutSeconds': 123
}
},
'TLSInspectionConfigurationArn': 'string',
'PolicyVariables': {
'RuleVariables': {
'string': {
'Definition': [
'string',
]
}
}
}
}
}
Response Structure
(dict) --
UpdateToken (string) --
A token used for optimistic locking. Network Firewall returns a token to your requests that access the firewall policy. The token marks the state of the policy resource at the time of the request.
To make changes to the policy, you provide the token in your request. Network Firewall uses the token to ensure that the policy hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the firewall policy again to get a current copy of it with current token. Reapply your changes as needed, then try the operation again using the new token.
FirewallPolicyResponse (dict) --
The high-level properties of a firewall policy. This, along with the FirewallPolicy, define the policy. You can retrieve all objects for a firewall policy by calling DescribeFirewallPolicy.
FirewallPolicyName (string) --
The descriptive name of the firewall policy. You can't change the name of a firewall policy after you create it.
FirewallPolicyArn (string) --
The Amazon Resource Name (ARN) of the firewall policy.
FirewallPolicyId (string) --
The unique identifier for the firewall policy.
Description (string) --
A description of the firewall policy.
FirewallPolicyStatus (string) --
The current status of the firewall policy. You can retrieve this for a firewall policy by calling DescribeFirewallPolicy and providing the firewall policy's name or ARN.
Tags (list) --
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) --
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) --
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
ConsumedStatelessRuleCapacity (integer) --
The number of capacity units currently consumed by the policy's stateless rules.
ConsumedStatefulRuleCapacity (integer) --
The number of capacity units currently consumed by the policy's stateful rules.
NumberOfAssociations (integer) --
The number of firewalls that are associated with this firewall policy.
EncryptionConfiguration (dict) --
A complex type that contains the Amazon Web Services KMS encryption configuration settings for your firewall policy.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) --
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
LastModifiedTime (datetime) --
The last time that the firewall policy was changed.
FirewallPolicy (dict) --
The policy for the specified firewall policy.
StatelessRuleGroupReferences (list) --
References to the stateless rule groups that are used in the policy. These define the matching criteria in stateless rules.
(dict) --
Identifier for a single stateless rule group, used in a firewall policy to refer to the rule group.
ResourceArn (string) --
The Amazon Resource Name (ARN) of the stateless rule group.
Priority (integer) --
An integer setting that indicates the order in which to run the stateless rule groups in a single FirewallPolicy. Network Firewall applies each stateless rule group to a packet starting with the group that has the lowest priority setting. You must ensure that the priority settings are unique within each policy.
StatelessDefaultActions (list) --
The actions to take on a packet if it doesn't match any of the stateless rules in the policy. If you want non-matching packets to be forwarded for stateful inspection, specify aws:forward_to_sfe.
You must specify one of the standard actions: aws:pass, aws:drop, or aws:forward_to_sfe. In addition, you can specify custom actions that are compatible with your standard section choice.
For example, you could specify ["aws:pass"] or you could specify ["aws:pass", “customActionName”]. For information about compatibility, see the custom action descriptions under CustomAction.
(string) --
StatelessFragmentDefaultActions (list) --
The actions to take on a fragmented UDP packet if it doesn't match any of the stateless rules in the policy. Network Firewall only manages UDP packet fragments and silently drops packet fragments for other protocols. If you want non-matching fragmented UDP packets to be forwarded for stateful inspection, specify aws:forward_to_sfe.
You must specify one of the standard actions: aws:pass, aws:drop, or aws:forward_to_sfe. In addition, you can specify custom actions that are compatible with your standard section choice.
For example, you could specify ["aws:pass"] or you could specify ["aws:pass", “customActionName”]. For information about compatibility, see the custom action descriptions under CustomAction.
(string) --
StatelessCustomActions (list) --
The custom action definitions that are available for use in the firewall policy's StatelessDefaultActions setting. You name each custom action that you define, and then you can use it by name in your default actions specifications.
(dict) --
An optional, non-standard action to use for stateless packet handling. You can define this in addition to the standard action that you must specify.
You define and name the custom actions that you want to be able to use, and then you reference them by name in your actions settings.
You can use custom actions in the following places:
In a rule group's StatelessRulesAndCustomActions specification. The custom actions are available for use by name inside the StatelessRulesAndCustomActions where you define them. You can use them for your stateless rule actions to specify what to do with a packet that matches the rule's match attributes.
In a FirewallPolicy specification, in StatelessCustomActions. The custom actions are available for use inside the policy where you define them. You can use them for the policy's default stateless actions settings to specify what to do with packets that don't match any of the policy's stateless rules.
ActionName (string) --
The descriptive name of the custom action. You can't change the name of a custom action after you create it.
ActionDefinition (dict) --
The custom action associated with the action name.
PublishMetricAction (dict) --
Stateless inspection criteria that publishes the specified metrics to Amazon CloudWatch for the matching packet. This setting defines a CloudWatch dimension value to be published.
You can pair this custom action with any of the standard stateless rule actions. For example, you could pair this in a rule action with the standard action that forwards the packet for stateful inspection. Then, when a packet matches the rule, Network Firewall publishes metrics for the packet and forwards it.
Dimensions (list) --
(dict) --
The value to use in an Amazon CloudWatch custom metric dimension. This is used in the PublishMetrics CustomAction. A CloudWatch custom metric dimension is a name/value pair that's part of the identity of a metric.
Network Firewall sets the dimension name to CustomAction and you provide the dimension value.
For more information about CloudWatch custom metric dimensions, see Publishing Custom Metrics in the Amazon CloudWatch User Guide.
Value (string) --
The value to use in the custom metric dimension.
StatefulRuleGroupReferences (list) --
References to the stateful rule groups that are used in the policy. These define the inspection criteria in stateful rules.
(dict) --
Identifier for a single stateful rule group, used in a firewall policy to refer to a rule group.
ResourceArn (string) --
The Amazon Resource Name (ARN) of the stateful rule group.
Priority (integer) --
An integer setting that indicates the order in which to run the stateful rule groups in a single FirewallPolicy. This setting only applies to firewall policies that specify the STRICT_ORDER rule order in the stateful engine options settings.
Network Firewall evalutes each stateful rule group against a packet starting with the group that has the lowest priority setting. You must ensure that the priority settings are unique within each policy.
You can change the priority settings of your rule groups at any time. To make it easier to insert rule groups later, number them so there's a wide range in between, for example use 100, 200, and so on.
Override (dict) --
The action that allows the policy owner to override the behavior of the rule group within a policy.
Action (string) --
The action that changes the rule group from DROP to ALERT. This only applies to managed rule groups.
DeepThreatInspection (boolean) --
Network Firewall plans to augment the active threat defense managed rule group with an additional deep threat inspection capability. When this capability is released, Amazon Web Services will analyze service logs of network traffic processed by these rule groups to identify threat indicators across customers. Amazon Web Services will use these threat indicators to improve the active threat defense managed rule groups and protect the security of Amazon Web Services customers and services.
StatefulDefaultActions (list) --
The default actions to take on a packet that doesn't match any stateful rules. The stateful default action is optional, and is only valid when using the strict rule order.
Valid values of the stateful default action:
aws:drop_strict
aws:drop_established
aws:alert_strict
aws:alert_established
For more information, see Strict evaluation order in the Network Firewall Developer Guide.
(string) --
StatefulEngineOptions (dict) --
Additional options governing how Network Firewall handles stateful rules. The stateful rule groups that you use in your policy must have stateful rule options settings that are compatible with these settings.
RuleOrder (string) --
Indicates how to manage the order of stateful rule evaluation for the policy. STRICT_ORDER is the recommended option, but DEFAULT_ACTION_ORDER is the default option. With STRICT_ORDER, provide your rules in the order that you want them to be evaluated. You can then choose one or more default actions for packets that don't match any rules. Choose STRICT_ORDER to have the stateful rules engine determine the evaluation order of your rules. The default action for this rule order is PASS, followed by DROP, REJECT, and ALERT actions. Stateful rules are provided to the rule engine as Suricata compatible strings, and Suricata evaluates them based on your settings. For more information, see Evaluation order for stateful rules in the Network Firewall Developer Guide.
StreamExceptionPolicy (string) --
Configures how Network Firewall processes traffic when a network connection breaks midstream. Network connections can break due to disruptions in external networks or within the firewall itself.
DROP - Network Firewall fails closed and drops all subsequent traffic going to the firewall. This is the default behavior.
CONTINUE - Network Firewall continues to apply rules to the subsequent traffic without context from traffic before the break. This impacts the behavior of rules that depend on this context. For example, if you have a stateful rule to drop http traffic, Network Firewall won't match the traffic for this rule because the service won't have the context from session initialization defining the application layer protocol as HTTP. However, this behavior is rule dependent—a TCP-layer rule using a flow:stateless rule would still match, as would the aws:drop_strict default action.
REJECT - Network Firewall fails closed and drops all subsequent traffic going to the firewall. Network Firewall also sends a TCP reject packet back to your client so that the client can immediately establish a new session. Network Firewall will have context about the new session and will apply rules to the subsequent traffic.
FlowTimeouts (dict) --
Configures the amount of time that can pass without any traffic sent through the firewall before the firewall determines that the connection is idle.
TcpIdleTimeoutSeconds (integer) --
The number of seconds that can pass without any TCP traffic sent through the firewall before the firewall determines that the connection is idle. After the idle timeout passes, data packets are dropped, however, the next TCP SYN packet is considered a new flow and is processed by the firewall. Clients or targets can use TCP keepalive packets to reset the idle timeout.
You can define the TcpIdleTimeoutSeconds value to be between 60 and 6000 seconds. If no value is provided, it defaults to 350 seconds.
TLSInspectionConfigurationArn (string) --
The Amazon Resource Name (ARN) of the TLS inspection configuration.
PolicyVariables (dict) --
Contains variables that you can use to override default Suricata settings in your firewall policy.
RuleVariables (dict) --
The IPv4 or IPv6 addresses in CIDR notation to use for the Suricata HOME_NET variable. If your firewall uses an inspection VPC, you might want to override the HOME_NET variable with the CIDRs of your home networks. If you don't override HOME_NET with your own CIDRs, Network Firewall by default uses the CIDR of your inspection VPC.
(string) --
(dict) --
A list of IP addresses and address ranges, in CIDR notation. This is part of a RuleVariables.
Definition (list) --
The list of IP addresses and address ranges, in CIDR notation.
(string) --
{'RuleGroupResponse': {'SummaryConfiguration': {'RuleOptions': ['SID | MSG | '
'METADATA']}}}
Returns the data objects for the specified rule group.
See also: AWS API Documentation
Request Syntax
client.describe_rule_group(
RuleGroupName='string',
RuleGroupArn='string',
Type='STATELESS'|'STATEFUL',
AnalyzeRuleGroup=True|False
)
string
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
You must specify the ARN or the name, and you can specify both.
string
The Amazon Resource Name (ARN) of the rule group.
You must specify the ARN or the name, and you can specify both.
string
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
boolean
Indicates whether you want Network Firewall to analyze the stateless rules in the rule group for rule behavior such as asymmetric routing. If set to TRUE, Network Firewall runs the analysis.
dict
Response Syntax
{
'UpdateToken': 'string',
'RuleGroup': {
'RuleVariables': {
'IPSets': {
'string': {
'Definition': [
'string',
]
}
},
'PortSets': {
'string': {
'Definition': [
'string',
]
}
}
},
'ReferenceSets': {
'IPSetReferences': {
'string': {
'ReferenceArn': 'string'
}
}
},
'RulesSource': {
'RulesString': 'string',
'RulesSourceList': {
'Targets': [
'string',
],
'TargetTypes': [
'TLS_SNI'|'HTTP_HOST',
],
'GeneratedRulesType': 'ALLOWLIST'|'DENYLIST'
},
'StatefulRules': [
{
'Action': 'PASS'|'DROP'|'ALERT'|'REJECT',
'Header': {
'Protocol': 'IP'|'TCP'|'UDP'|'ICMP'|'HTTP'|'FTP'|'TLS'|'SMB'|'DNS'|'DCERPC'|'SSH'|'SMTP'|'IMAP'|'MSN'|'KRB5'|'IKEV2'|'TFTP'|'NTP'|'DHCP'|'HTTP2'|'QUIC',
'Source': 'string',
'SourcePort': 'string',
'Direction': 'FORWARD'|'ANY',
'Destination': 'string',
'DestinationPort': 'string'
},
'RuleOptions': [
{
'Keyword': 'string',
'Settings': [
'string',
]
},
]
},
],
'StatelessRulesAndCustomActions': {
'StatelessRules': [
{
'RuleDefinition': {
'MatchAttributes': {
'Sources': [
{
'AddressDefinition': 'string'
},
],
'Destinations': [
{
'AddressDefinition': 'string'
},
],
'SourcePorts': [
{
'FromPort': 123,
'ToPort': 123
},
],
'DestinationPorts': [
{
'FromPort': 123,
'ToPort': 123
},
],
'Protocols': [
123,
],
'TCPFlags': [
{
'Flags': [
'FIN'|'SYN'|'RST'|'PSH'|'ACK'|'URG'|'ECE'|'CWR',
],
'Masks': [
'FIN'|'SYN'|'RST'|'PSH'|'ACK'|'URG'|'ECE'|'CWR',
]
},
]
},
'Actions': [
'string',
]
},
'Priority': 123
},
],
'CustomActions': [
{
'ActionName': 'string',
'ActionDefinition': {
'PublishMetricAction': {
'Dimensions': [
{
'Value': 'string'
},
]
}
}
},
]
}
},
'StatefulRuleOptions': {
'RuleOrder': 'DEFAULT_ACTION_ORDER'|'STRICT_ORDER'
}
},
'RuleGroupResponse': {
'RuleGroupArn': 'string',
'RuleGroupName': 'string',
'RuleGroupId': 'string',
'Description': 'string',
'Type': 'STATELESS'|'STATEFUL',
'Capacity': 123,
'RuleGroupStatus': 'ACTIVE'|'DELETING'|'ERROR',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'ConsumedCapacity': 123,
'NumberOfAssociations': 123,
'EncryptionConfiguration': {
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
'SourceMetadata': {
'SourceArn': 'string',
'SourceUpdateToken': 'string'
},
'SnsTopic': 'string',
'LastModifiedTime': datetime(2015, 1, 1),
'AnalysisResults': [
{
'IdentifiedRuleIds': [
'string',
],
'IdentifiedType': 'STATELESS_RULE_FORWARDING_ASYMMETRICALLY'|'STATELESS_RULE_CONTAINS_TCP_FLAGS',
'AnalysisDetail': 'string'
},
],
'SummaryConfiguration': {
'RuleOptions': [
'SID'|'MSG'|'METADATA',
]
}
}
}
Response Structure
(dict) --
UpdateToken (string) --
A token used for optimistic locking. Network Firewall returns a token to your requests that access the rule group. The token marks the state of the rule group resource at the time of the request.
To make changes to the rule group, you provide the token in your request. Network Firewall uses the token to ensure that the rule group hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the rule group again to get a current copy of it with a current token. Reapply your changes as needed, then try the operation again using the new token.
RuleGroup (dict) --
The object that defines the rules in a rule group. This, along with RuleGroupResponse, define the rule group. You can retrieve all objects for a rule group by calling DescribeRuleGroup.
Network Firewall uses a rule group to inspect and control network traffic. You define stateless rule groups to inspect individual packets and you define stateful rule groups to inspect packets in the context of their traffic flow.
To use a rule group, you include it by reference in an Network Firewall firewall policy, then you use the policy in a firewall. You can reference a rule group from more than one firewall policy, and you can use a firewall policy in more than one firewall.
RuleVariables (dict) --
Settings that are available for use in the rules in the rule group. You can only use these for stateful rule groups.
IPSets (dict) --
A list of IP addresses and address ranges, in CIDR notation.
(string) --
(dict) --
A list of IP addresses and address ranges, in CIDR notation. This is part of a RuleVariables.
Definition (list) --
The list of IP addresses and address ranges, in CIDR notation.
(string) --
PortSets (dict) --
A list of port ranges.
(string) --
(dict) --
A set of port ranges for use in the rules in a rule group.
Definition (list) --
The set of port ranges.
(string) --
ReferenceSets (dict) --
The list of a rule group's reference sets.
IPSetReferences (dict) --
The list of IP set references.
(string) --
(dict) --
Configures one or more IP set references for a Suricata-compatible rule group. This is used in CreateRuleGroup or UpdateRuleGroup. An IP set reference is a rule variable that references resources that you create and manage in another Amazon Web Services service, such as an Amazon VPC prefix list. Network Firewall IP set references enable you to dynamically update the contents of your rules. When you create, update, or delete the resource you are referencing in your rule, Network Firewall automatically updates the rule's content with the changes. For more information about IP set references in Network Firewall, see Using IP set references in the Network Firewall Developer Guide.
Network Firewall currently supports Amazon VPC prefix lists and resource groups in IP set references.
ReferenceArn (string) --
The Amazon Resource Name (ARN) of the resource that you are referencing in your rule group.
RulesSource (dict) --
The stateful rules or stateless rules for the rule group.
RulesString (string) --
Stateful inspection criteria, provided in Suricata compatible rules. Suricata is an open-source threat detection framework that includes a standard rule-based language for network traffic inspection.
These rules contain the inspection criteria and the action to take for traffic that matches the criteria, so this type of rule group doesn't have a separate action setting.
RulesSourceList (dict) --
Stateful inspection criteria for a domain list rule group.
Targets (list) --
The domains that you want to inspect for in your traffic flows. Valid domain specifications are the following:
Explicit names. For example, abc.example.com matches only the domain abc.example.com.
Names that use a domain wildcard, which you indicate with an initial ' .'. For example, .example.com matches example.com and matches all subdomains of example.com, such as abc.example.com and www.example.com.
(string) --
TargetTypes (list) --
The protocols you want to inspect. Specify TLS_SNI for HTTPS. Specify HTTP_HOST for HTTP. You can specify either or both.
(string) --
GeneratedRulesType (string) --
Whether you want to allow or deny access to the domains in your target list.
StatefulRules (list) --
An array of individual stateful rules inspection criteria to be used together in a stateful rule group. Use this option to specify simple Suricata rules with protocol, source and destination, ports, direction, and rule options. For information about the Suricata Rules format, see Rules Format.
(dict) --
A single Suricata rules specification, for use in a stateful rule group. Use this option to specify a simple Suricata rule with protocol, source and destination, ports, direction, and rule options. For information about the Suricata Rules format, see Rules Format.
Action (string) --
Defines what Network Firewall should do with the packets in a traffic flow when the flow matches the stateful rule criteria. For all actions, Network Firewall performs the specified action and discontinues stateful inspection of the traffic flow.
The actions for a stateful rule are defined as follows:
PASS - Permits the packets to go to the intended destination.
DROP - Blocks the packets from going to the intended destination and sends an alert log message, if alert logging is configured in the Firewall LoggingConfiguration.
ALERT - Sends an alert log message, if alert logging is configured in the Firewall LoggingConfiguration. You can use this action to test a rule that you intend to use to drop traffic. You can enable the rule with ALERT action, verify in the logs that the rule is filtering as you want, then change the action to DROP.
REJECT - Drops traffic that matches the conditions of the stateful rule, and sends a TCP reset packet back to sender of the packet. A TCP reset packet is a packet with no payload and an RST bit contained in the TCP header flags. REJECT is available only for TCP traffic. This option doesn't support FTP or IMAP protocols.
Header (dict) --
The stateful inspection criteria for this rule, used to inspect traffic flows.
Protocol (string) --
The protocol to inspect for. To specify all, you can use IP, because all traffic on Amazon Web Services and on the internet is IP.
Source (string) --
The source IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
SourcePort (string) --
The source port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
Direction (string) --
The direction of traffic flow to inspect. If set to ANY, the inspection matches bidirectional traffic, both from the source to the destination and from the destination to the source. If set to FORWARD, the inspection only matches traffic going from the source to the destination.
Destination (string) --
The destination IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
DestinationPort (string) --
The destination port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
RuleOptions (list) --
Additional options for the rule. These are the Suricata RuleOptions settings.
(dict) --
Additional settings for a stateful rule. This is part of the StatefulRule configuration.
Keyword (string) --
The keyword for the Suricata compatible rule option. You must include a sid (signature ID), and can optionally include other keywords. For information about Suricata compatible keywords, see Rule options in the Suricata documentation.
Settings (list) --
The settings of the Suricata compatible rule option. Rule options have zero or more setting values, and the number of possible and required settings depends on the Keyword. For more information about the settings for specific options, see Rule options.
(string) --
StatelessRulesAndCustomActions (dict) --
Stateless inspection criteria to be used in a stateless rule group.
StatelessRules (list) --
Defines the set of stateless rules for use in a stateless rule group.
(dict) --
A single stateless rule. This is used in StatelessRulesAndCustomActions.
RuleDefinition (dict) --
Defines the stateless 5-tuple packet inspection criteria and the action to take on a packet that matches the criteria.
MatchAttributes (dict) --
Criteria for Network Firewall to use to inspect an individual packet in stateless rule inspection. Each match attributes set can include one or more items such as IP address, CIDR range, port number, protocol, and TCP flags.
Sources (list) --
The source IP addresses and address ranges to inspect for, in CIDR notation. If not specified, this matches with any source address.
(dict) --
A single IP address specification. This is used in the MatchAttributes source and destination specifications.
AddressDefinition (string) --
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
Destinations (list) --
The destination IP addresses and address ranges to inspect for, in CIDR notation. If not specified, this matches with any destination address.
(dict) --
A single IP address specification. This is used in the MatchAttributes source and destination specifications.
AddressDefinition (string) --
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
SourcePorts (list) --
The source port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
If not specified, this matches with any source port.
This setting is only used for protocols 6 (TCP) and 17 (UDP).
(dict) --
A single port range specification. This is used for source and destination port ranges in the stateless rule MatchAttributes, SourcePorts, and DestinationPorts settings.
FromPort (integer) --
The lower limit of the port range. This must be less than or equal to the ToPort specification.
ToPort (integer) --
The upper limit of the port range. This must be greater than or equal to the FromPort specification.
DestinationPorts (list) --
The destination port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
This setting is only used for protocols 6 (TCP) and 17 (UDP).
(dict) --
A single port range specification. This is used for source and destination port ranges in the stateless rule MatchAttributes, SourcePorts, and DestinationPorts settings.
FromPort (integer) --
The lower limit of the port range. This must be less than or equal to the ToPort specification.
ToPort (integer) --
The upper limit of the port range. This must be greater than or equal to the FromPort specification.
Protocols (list) --
The protocols to inspect for, specified using the assigned internet protocol number (IANA) for each protocol. If not specified, this matches with any protocol.
(integer) --
TCPFlags (list) --
The TCP flags and masks to inspect for. If not specified, this matches with any settings. This setting is only used for protocol 6 (TCP).
(dict) --
TCP flags and masks to inspect packets for, used in stateless rules MatchAttributes settings.
Flags (list) --
Used in conjunction with the Masks setting to define the flags that must be set and flags that must not be set in order for the packet to match. This setting can only specify values that are also specified in the Masks setting.
For the flags that are specified in the masks setting, the following must be true for the packet to match:
The ones that are set in this flags setting must be set in the packet.
The ones that are not set in this flags setting must also not be set in the packet.
(string) --
Masks (list) --
The set of flags to consider in the inspection. To inspect all flags in the valid values list, leave this with no setting.
(string) --
Actions (list) --
The actions to take on a packet that matches one of the stateless rule definition's match attributes. You must specify a standard action and you can add custom actions.
For every rule, you must specify exactly one of the following standard actions.
aws:pass - Discontinues all inspection of the packet and permits it to go to its intended destination.
aws:drop - Discontinues all inspection of the packet and blocks it from going to its intended destination.
aws:forward_to_sfe - Discontinues stateless inspection of the packet and forwards it to the stateful rule engine for inspection.
Additionally, you can specify a custom action. To do this, you define a custom action by name and type, then provide the name you've assigned to the action in this Actions setting. For information about the options, see CustomAction.
To provide more than one action in this setting, separate the settings with a comma. For example, if you have a custom PublishMetrics action that you've named MyMetricsAction, then you could specify the standard action aws:pass and the custom action with [“aws:pass”, “MyMetricsAction”].
(string) --
Priority (integer) --
Indicates the order in which to run this rule relative to all of the rules that are defined for a stateless rule group. Network Firewall evaluates the rules in a rule group starting with the lowest priority setting. You must ensure that the priority settings are unique for the rule group.
Each stateless rule group uses exactly one StatelessRulesAndCustomActions object, and each StatelessRulesAndCustomActions contains exactly one StatelessRules object. To ensure unique priority settings for your rule groups, set unique priorities for the stateless rules that you define inside any single StatelessRules object.
You can change the priority settings of your rules at any time. To make it easier to insert rules later, number them so there's a wide range in between, for example use 100, 200, and so on.
CustomActions (list) --
Defines an array of individual custom action definitions that are available for use by the stateless rules in this StatelessRulesAndCustomActions specification. You name each custom action that you define, and then you can use it by name in your StatelessRule RuleDefinition Actions specification.
(dict) --
An optional, non-standard action to use for stateless packet handling. You can define this in addition to the standard action that you must specify.
You define and name the custom actions that you want to be able to use, and then you reference them by name in your actions settings.
You can use custom actions in the following places:
In a rule group's StatelessRulesAndCustomActions specification. The custom actions are available for use by name inside the StatelessRulesAndCustomActions where you define them. You can use them for your stateless rule actions to specify what to do with a packet that matches the rule's match attributes.
In a FirewallPolicy specification, in StatelessCustomActions. The custom actions are available for use inside the policy where you define them. You can use them for the policy's default stateless actions settings to specify what to do with packets that don't match any of the policy's stateless rules.
ActionName (string) --
The descriptive name of the custom action. You can't change the name of a custom action after you create it.
ActionDefinition (dict) --
The custom action associated with the action name.
PublishMetricAction (dict) --
Stateless inspection criteria that publishes the specified metrics to Amazon CloudWatch for the matching packet. This setting defines a CloudWatch dimension value to be published.
You can pair this custom action with any of the standard stateless rule actions. For example, you could pair this in a rule action with the standard action that forwards the packet for stateful inspection. Then, when a packet matches the rule, Network Firewall publishes metrics for the packet and forwards it.
Dimensions (list) --
(dict) --
The value to use in an Amazon CloudWatch custom metric dimension. This is used in the PublishMetrics CustomAction. A CloudWatch custom metric dimension is a name/value pair that's part of the identity of a metric.
Network Firewall sets the dimension name to CustomAction and you provide the dimension value.
For more information about CloudWatch custom metric dimensions, see Publishing Custom Metrics in the Amazon CloudWatch User Guide.
Value (string) --
The value to use in the custom metric dimension.
StatefulRuleOptions (dict) --
Additional options governing how Network Firewall handles stateful rules. The policies where you use your stateful rule group must have stateful rule options settings that are compatible with these settings. Some limitations apply; for more information, see Strict evaluation order in the Network Firewall Developer Guide.
RuleOrder (string) --
Indicates how to manage the order of the rule evaluation for the rule group. DEFAULT_ACTION_ORDER is the default behavior. Stateful rules are provided to the rule engine as Suricata compatible strings, and Suricata evaluates them based on certain settings. For more information, see Evaluation order for stateful rules in the Network Firewall Developer Guide.
RuleGroupResponse (dict) --
The high-level properties of a rule group. This, along with the RuleGroup, define the rule group. You can retrieve all objects for a rule group by calling DescribeRuleGroup.
RuleGroupArn (string) --
The Amazon Resource Name (ARN) of the rule group.
RuleGroupName (string) --
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
RuleGroupId (string) --
The unique identifier for the rule group.
Description (string) --
A description of the rule group.
Type (string) --
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
Capacity (integer) --
The maximum operating resources that this rule group can use. Rule group capacity is fixed at creation. When you update a rule group, you are limited to this capacity. When you reference a rule group from a firewall policy, Network Firewall reserves this capacity for the rule group.
You can retrieve the capacity that would be required for a rule group before you create the rule group by calling CreateRuleGroup with DryRun set to TRUE.
RuleGroupStatus (string) --
Detailed information about the current status of a rule group.
Tags (list) --
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) --
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) --
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
ConsumedCapacity (integer) --
The number of capacity units currently consumed by the rule group rules.
NumberOfAssociations (integer) --
The number of firewall policies that use this rule group.
EncryptionConfiguration (dict) --
A complex type that contains the Amazon Web Services KMS encryption configuration settings for your rule group.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) --
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
SourceMetadata (dict) --
A complex type that contains metadata about the rule group that your own rule group is copied from. You can use the metadata to track the version updates made to the originating rule group.
SourceArn (string) --
The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
SourceUpdateToken (string) --
The update token of the Amazon Web Services managed rule group that your own rule group is copied from. To determine the update token for the managed rule group, call DescribeRuleGroup.
SnsTopic (string) --
The Amazon Resource Name (ARN) of the Amazon Simple Notification Service SNS topic that's used to record changes to the managed rule group. You can subscribe to the SNS topic to receive notifications when the managed rule group is modified, such as for new versions and for version expiration. For more information, see the Amazon Simple Notification Service Developer Guide..
LastModifiedTime (datetime) --
The last time that the rule group was changed.
AnalysisResults (list) --
The list of analysis results for AnalyzeRuleGroup. If you set AnalyzeRuleGroup to TRUE in CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup, Network Firewall analyzes the rule group and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in the list of analysis results.
(dict) --
The analysis result for Network Firewall's stateless rule group analyzer. Every time you call CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup on a stateless rule group, Network Firewall analyzes the stateless rule groups in your account and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in a list of analysis results.
The AnalysisResult data type is not related to traffic analysis reports you generate using StartAnalysisReport. For information on traffic analysis report results, see AnalysisTypeReportResult.
IdentifiedRuleIds (list) --
The priority number of the stateless rules identified in the analysis.
(string) --
IdentifiedType (string) --
The types of rule configurations that Network Firewall analyzes your rule groups for. Network Firewall analyzes stateless rule groups for the following types of rule configurations:
STATELESS_RULE_FORWARDING_ASYMMETRICALLY Cause: One or more stateless rules with the action pass or forward are forwarding traffic asymmetrically. Specifically, the rule's set of source IP addresses or their associated port numbers, don't match the set of destination IP addresses or their associated port numbers. To mitigate: Make sure that there's an existing return path. For example, if the rule allows traffic from source 10.1.0.0/24 to destination 20.1.0.0/24, you should allow return traffic from source 20.1.0.0/24 to destination 10.1.0.0/24.
STATELESS_RULE_CONTAINS_TCP_FLAGS Cause: At least one stateless rule with the action pass or forward contains TCP flags that are inconsistent in the forward and return directions. To mitigate: Prevent asymmetric routing issues caused by TCP flags by following these actions:
Remove unnecessary TCP flag inspections from the rules.
If you need to inspect TCP flags, check that the rules correctly account for changes in TCP flags throughout the TCP connection cycle, for example SYN and ACK flags used in a 3-way TCP handshake.
AnalysisDetail (string) --
Provides analysis details for the identified rule.
SummaryConfiguration (dict) --
A complex type containing the currently selected rule option fields that will be displayed for rule summarization returned by DescribeRuleGroupSummary.
The RuleOptions specified in SummaryConfiguration
Rule metadata organization preferences
RuleOptions (list) --
Specifies the selected rule options returned by DescribeRuleGroupSummary.
(string) --
{'ManagedType': {'ACTIVE_THREAT_DEFENSE'}}
Retrieves the metadata for the rule groups that you have defined. Depending on your setting for max results and the number of rule groups, a single call might not return the full list.
See also: AWS API Documentation
Request Syntax
client.list_rule_groups(
NextToken='string',
MaxResults=123,
Scope='MANAGED'|'ACCOUNT',
ManagedType='AWS_MANAGED_THREAT_SIGNATURES'|'AWS_MANAGED_DOMAIN_LISTS'|'ACTIVE_THREAT_DEFENSE',
Type='STATELESS'|'STATEFUL'
)
string
When you request a list of objects with a MaxResults setting, if the number of objects that are still available for retrieval exceeds the maximum you requested, Network Firewall returns a NextToken value in the response. To retrieve the next batch of objects, use the token returned from the prior request in your next request.
integer
The maximum number of objects that you want Network Firewall to return for this request. If more objects are available, in the response, Network Firewall provides a NextToken value that you can use in a subsequent call to get the next batch of objects.
string
The scope of the request. The default setting of ACCOUNT or a setting of NULL returns all of the rule groups in your account. A setting of MANAGED returns all available managed rule groups.
string
Indicates the general category of the Amazon Web Services managed rule group.
string
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
dict
Response Syntax
{
'NextToken': 'string',
'RuleGroups': [
{
'Name': 'string',
'Arn': 'string'
},
]
}
Response Structure
(dict) --
NextToken (string) --
When you request a list of objects with a MaxResults setting, if the number of objects that are still available for retrieval exceeds the maximum you requested, Network Firewall returns a NextToken value in the response. To retrieve the next batch of objects, use the token returned from the prior request in your next request.
RuleGroups (list) --
The rule group metadata objects that you've defined. Depending on your setting for max results and the number of rule groups, this might not be the full list.
(dict) --
High-level information about a rule group, returned by ListRuleGroups. You can use the information provided in the metadata to retrieve and manage a rule group.
Name (string) --
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
Arn (string) --
The Amazon Resource Name (ARN) of the rule group.
{'FirewallPolicy': {'StatefulRuleGroupReferences': {'DeepThreatInspection': 'boolean'}}}
Updates the properties of the specified firewall policy.
See also: AWS API Documentation
Request Syntax
client.update_firewall_policy(
UpdateToken='string',
FirewallPolicyArn='string',
FirewallPolicyName='string',
FirewallPolicy={
'StatelessRuleGroupReferences': [
{
'ResourceArn': 'string',
'Priority': 123
},
],
'StatelessDefaultActions': [
'string',
],
'StatelessFragmentDefaultActions': [
'string',
],
'StatelessCustomActions': [
{
'ActionName': 'string',
'ActionDefinition': {
'PublishMetricAction': {
'Dimensions': [
{
'Value': 'string'
},
]
}
}
},
],
'StatefulRuleGroupReferences': [
{
'ResourceArn': 'string',
'Priority': 123,
'Override': {
'Action': 'DROP_TO_ALERT'
},
'DeepThreatInspection': True|False
},
],
'StatefulDefaultActions': [
'string',
],
'StatefulEngineOptions': {
'RuleOrder': 'DEFAULT_ACTION_ORDER'|'STRICT_ORDER',
'StreamExceptionPolicy': 'DROP'|'CONTINUE'|'REJECT',
'FlowTimeouts': {
'TcpIdleTimeoutSeconds': 123
}
},
'TLSInspectionConfigurationArn': 'string',
'PolicyVariables': {
'RuleVariables': {
'string': {
'Definition': [
'string',
]
}
}
}
},
Description='string',
DryRun=True|False,
EncryptionConfiguration={
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
}
)
string
[REQUIRED]
A token used for optimistic locking. Network Firewall returns a token to your requests that access the firewall policy. The token marks the state of the policy resource at the time of the request.
To make changes to the policy, you provide the token in your request. Network Firewall uses the token to ensure that the policy hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the firewall policy again to get a current copy of it with current token. Reapply your changes as needed, then try the operation again using the new token.
string
The Amazon Resource Name (ARN) of the firewall policy.
You must specify the ARN or the name, and you can specify both.
string
The descriptive name of the firewall policy. You can't change the name of a firewall policy after you create it.
You must specify the ARN or the name, and you can specify both.
dict
[REQUIRED]
The updated firewall policy to use for the firewall. You can't add or remove a TLSInspectionConfiguration after you create a firewall policy. However, you can replace an existing TLS inspection configuration with another TLSInspectionConfiguration.
StatelessRuleGroupReferences (list) --
References to the stateless rule groups that are used in the policy. These define the matching criteria in stateless rules.
(dict) --
Identifier for a single stateless rule group, used in a firewall policy to refer to the rule group.
ResourceArn (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the stateless rule group.
Priority (integer) -- [REQUIRED]
An integer setting that indicates the order in which to run the stateless rule groups in a single FirewallPolicy. Network Firewall applies each stateless rule group to a packet starting with the group that has the lowest priority setting. You must ensure that the priority settings are unique within each policy.
StatelessDefaultActions (list) -- [REQUIRED]
The actions to take on a packet if it doesn't match any of the stateless rules in the policy. If you want non-matching packets to be forwarded for stateful inspection, specify aws:forward_to_sfe.
You must specify one of the standard actions: aws:pass, aws:drop, or aws:forward_to_sfe. In addition, you can specify custom actions that are compatible with your standard section choice.
For example, you could specify ["aws:pass"] or you could specify ["aws:pass", “customActionName”]. For information about compatibility, see the custom action descriptions under CustomAction.
(string) --
StatelessFragmentDefaultActions (list) -- [REQUIRED]
The actions to take on a fragmented UDP packet if it doesn't match any of the stateless rules in the policy. Network Firewall only manages UDP packet fragments and silently drops packet fragments for other protocols. If you want non-matching fragmented UDP packets to be forwarded for stateful inspection, specify aws:forward_to_sfe.
You must specify one of the standard actions: aws:pass, aws:drop, or aws:forward_to_sfe. In addition, you can specify custom actions that are compatible with your standard section choice.
For example, you could specify ["aws:pass"] or you could specify ["aws:pass", “customActionName”]. For information about compatibility, see the custom action descriptions under CustomAction.
(string) --
StatelessCustomActions (list) --
The custom action definitions that are available for use in the firewall policy's StatelessDefaultActions setting. You name each custom action that you define, and then you can use it by name in your default actions specifications.
(dict) --
An optional, non-standard action to use for stateless packet handling. You can define this in addition to the standard action that you must specify.
You define and name the custom actions that you want to be able to use, and then you reference them by name in your actions settings.
You can use custom actions in the following places:
In a rule group's StatelessRulesAndCustomActions specification. The custom actions are available for use by name inside the StatelessRulesAndCustomActions where you define them. You can use them for your stateless rule actions to specify what to do with a packet that matches the rule's match attributes.
In a FirewallPolicy specification, in StatelessCustomActions. The custom actions are available for use inside the policy where you define them. You can use them for the policy's default stateless actions settings to specify what to do with packets that don't match any of the policy's stateless rules.
ActionName (string) -- [REQUIRED]
The descriptive name of the custom action. You can't change the name of a custom action after you create it.
ActionDefinition (dict) -- [REQUIRED]
The custom action associated with the action name.
PublishMetricAction (dict) --
Stateless inspection criteria that publishes the specified metrics to Amazon CloudWatch for the matching packet. This setting defines a CloudWatch dimension value to be published.
You can pair this custom action with any of the standard stateless rule actions. For example, you could pair this in a rule action with the standard action that forwards the packet for stateful inspection. Then, when a packet matches the rule, Network Firewall publishes metrics for the packet and forwards it.
Dimensions (list) -- [REQUIRED]
(dict) --
The value to use in an Amazon CloudWatch custom metric dimension. This is used in the PublishMetrics CustomAction. A CloudWatch custom metric dimension is a name/value pair that's part of the identity of a metric.
Network Firewall sets the dimension name to CustomAction and you provide the dimension value.
For more information about CloudWatch custom metric dimensions, see Publishing Custom Metrics in the Amazon CloudWatch User Guide.
Value (string) -- [REQUIRED]
The value to use in the custom metric dimension.
StatefulRuleGroupReferences (list) --
References to the stateful rule groups that are used in the policy. These define the inspection criteria in stateful rules.
(dict) --
Identifier for a single stateful rule group, used in a firewall policy to refer to a rule group.
ResourceArn (string) -- [REQUIRED]
The Amazon Resource Name (ARN) of the stateful rule group.
Priority (integer) --
An integer setting that indicates the order in which to run the stateful rule groups in a single FirewallPolicy. This setting only applies to firewall policies that specify the STRICT_ORDER rule order in the stateful engine options settings.
Network Firewall evalutes each stateful rule group against a packet starting with the group that has the lowest priority setting. You must ensure that the priority settings are unique within each policy.
You can change the priority settings of your rule groups at any time. To make it easier to insert rule groups later, number them so there's a wide range in between, for example use 100, 200, and so on.
Override (dict) --
The action that allows the policy owner to override the behavior of the rule group within a policy.
Action (string) --
The action that changes the rule group from DROP to ALERT. This only applies to managed rule groups.
DeepThreatInspection (boolean) --
Network Firewall plans to augment the active threat defense managed rule group with an additional deep threat inspection capability. When this capability is released, Amazon Web Services will analyze service logs of network traffic processed by these rule groups to identify threat indicators across customers. Amazon Web Services will use these threat indicators to improve the active threat defense managed rule groups and protect the security of Amazon Web Services customers and services.
StatefulDefaultActions (list) --
The default actions to take on a packet that doesn't match any stateful rules. The stateful default action is optional, and is only valid when using the strict rule order.
Valid values of the stateful default action:
aws:drop_strict
aws:drop_established
aws:alert_strict
aws:alert_established
For more information, see Strict evaluation order in the Network Firewall Developer Guide.
(string) --
StatefulEngineOptions (dict) --
Additional options governing how Network Firewall handles stateful rules. The stateful rule groups that you use in your policy must have stateful rule options settings that are compatible with these settings.
RuleOrder (string) --
Indicates how to manage the order of stateful rule evaluation for the policy. STRICT_ORDER is the recommended option, but DEFAULT_ACTION_ORDER is the default option. With STRICT_ORDER, provide your rules in the order that you want them to be evaluated. You can then choose one or more default actions for packets that don't match any rules. Choose STRICT_ORDER to have the stateful rules engine determine the evaluation order of your rules. The default action for this rule order is PASS, followed by DROP, REJECT, and ALERT actions. Stateful rules are provided to the rule engine as Suricata compatible strings, and Suricata evaluates them based on your settings. For more information, see Evaluation order for stateful rules in the Network Firewall Developer Guide.
StreamExceptionPolicy (string) --
Configures how Network Firewall processes traffic when a network connection breaks midstream. Network connections can break due to disruptions in external networks or within the firewall itself.
DROP - Network Firewall fails closed and drops all subsequent traffic going to the firewall. This is the default behavior.
CONTINUE - Network Firewall continues to apply rules to the subsequent traffic without context from traffic before the break. This impacts the behavior of rules that depend on this context. For example, if you have a stateful rule to drop http traffic, Network Firewall won't match the traffic for this rule because the service won't have the context from session initialization defining the application layer protocol as HTTP. However, this behavior is rule dependent—a TCP-layer rule using a flow:stateless rule would still match, as would the aws:drop_strict default action.
REJECT - Network Firewall fails closed and drops all subsequent traffic going to the firewall. Network Firewall also sends a TCP reject packet back to your client so that the client can immediately establish a new session. Network Firewall will have context about the new session and will apply rules to the subsequent traffic.
FlowTimeouts (dict) --
Configures the amount of time that can pass without any traffic sent through the firewall before the firewall determines that the connection is idle.
TcpIdleTimeoutSeconds (integer) --
The number of seconds that can pass without any TCP traffic sent through the firewall before the firewall determines that the connection is idle. After the idle timeout passes, data packets are dropped, however, the next TCP SYN packet is considered a new flow and is processed by the firewall. Clients or targets can use TCP keepalive packets to reset the idle timeout.
You can define the TcpIdleTimeoutSeconds value to be between 60 and 6000 seconds. If no value is provided, it defaults to 350 seconds.
TLSInspectionConfigurationArn (string) --
The Amazon Resource Name (ARN) of the TLS inspection configuration.
PolicyVariables (dict) --
Contains variables that you can use to override default Suricata settings in your firewall policy.
RuleVariables (dict) --
The IPv4 or IPv6 addresses in CIDR notation to use for the Suricata HOME_NET variable. If your firewall uses an inspection VPC, you might want to override the HOME_NET variable with the CIDRs of your home networks. If you don't override HOME_NET with your own CIDRs, Network Firewall by default uses the CIDR of your inspection VPC.
(string) --
(dict) --
A list of IP addresses and address ranges, in CIDR notation. This is part of a RuleVariables.
Definition (list) -- [REQUIRED]
The list of IP addresses and address ranges, in CIDR notation.
(string) --
string
A description of the firewall policy.
boolean
Indicates whether you want Network Firewall to just check the validity of the request, rather than run the request.
If set to TRUE, Network Firewall checks whether the request can run successfully, but doesn't actually make the requested changes. The call returns the value that the request would return if you ran it with dry run set to FALSE, but doesn't make additions or changes to your resources. This option allows you to make sure that you have the required permissions to run the request and that your request parameters are valid.
If set to FALSE, Network Firewall makes the requested changes to your resources.
dict
A complex type that contains settings for encryption of your firewall policy resources.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) -- [REQUIRED]
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
dict
Response Syntax
{
'UpdateToken': 'string',
'FirewallPolicyResponse': {
'FirewallPolicyName': 'string',
'FirewallPolicyArn': 'string',
'FirewallPolicyId': 'string',
'Description': 'string',
'FirewallPolicyStatus': 'ACTIVE'|'DELETING'|'ERROR',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'ConsumedStatelessRuleCapacity': 123,
'ConsumedStatefulRuleCapacity': 123,
'NumberOfAssociations': 123,
'EncryptionConfiguration': {
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
'LastModifiedTime': datetime(2015, 1, 1)
}
}
Response Structure
(dict) --
UpdateToken (string) --
A token used for optimistic locking. Network Firewall returns a token to your requests that access the firewall policy. The token marks the state of the policy resource at the time of the request.
To make changes to the policy, you provide the token in your request. Network Firewall uses the token to ensure that the policy hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the firewall policy again to get a current copy of it with current token. Reapply your changes as needed, then try the operation again using the new token.
FirewallPolicyResponse (dict) --
The high-level properties of a firewall policy. This, along with the FirewallPolicy, define the policy. You can retrieve all objects for a firewall policy by calling DescribeFirewallPolicy.
FirewallPolicyName (string) --
The descriptive name of the firewall policy. You can't change the name of a firewall policy after you create it.
FirewallPolicyArn (string) --
The Amazon Resource Name (ARN) of the firewall policy.
FirewallPolicyId (string) --
The unique identifier for the firewall policy.
Description (string) --
A description of the firewall policy.
FirewallPolicyStatus (string) --
The current status of the firewall policy. You can retrieve this for a firewall policy by calling DescribeFirewallPolicy and providing the firewall policy's name or ARN.
Tags (list) --
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) --
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) --
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
ConsumedStatelessRuleCapacity (integer) --
The number of capacity units currently consumed by the policy's stateless rules.
ConsumedStatefulRuleCapacity (integer) --
The number of capacity units currently consumed by the policy's stateful rules.
NumberOfAssociations (integer) --
The number of firewalls that are associated with this firewall policy.
EncryptionConfiguration (dict) --
A complex type that contains the Amazon Web Services KMS encryption configuration settings for your firewall policy.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) --
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
LastModifiedTime (datetime) --
The last time that the firewall policy was changed.
{'SummaryConfiguration': {'RuleOptions': ['SID | MSG | METADATA']}}
Response {'RuleGroupResponse': {'SummaryConfiguration': {'RuleOptions': ['SID | MSG | '
'METADATA']}}}
Updates the rule settings for the specified rule group. You use a rule group by reference in one or more firewall policies. When you modify a rule group, you modify all firewall policies that use the rule group.
To update a rule group, first call DescribeRuleGroup to retrieve the current RuleGroup object, update the object as needed, and then provide the updated object to this call.
See also: AWS API Documentation
Request Syntax
client.update_rule_group(
UpdateToken='string',
RuleGroupArn='string',
RuleGroupName='string',
RuleGroup={
'RuleVariables': {
'IPSets': {
'string': {
'Definition': [
'string',
]
}
},
'PortSets': {
'string': {
'Definition': [
'string',
]
}
}
},
'ReferenceSets': {
'IPSetReferences': {
'string': {
'ReferenceArn': 'string'
}
}
},
'RulesSource': {
'RulesString': 'string',
'RulesSourceList': {
'Targets': [
'string',
],
'TargetTypes': [
'TLS_SNI'|'HTTP_HOST',
],
'GeneratedRulesType': 'ALLOWLIST'|'DENYLIST'
},
'StatefulRules': [
{
'Action': 'PASS'|'DROP'|'ALERT'|'REJECT',
'Header': {
'Protocol': 'IP'|'TCP'|'UDP'|'ICMP'|'HTTP'|'FTP'|'TLS'|'SMB'|'DNS'|'DCERPC'|'SSH'|'SMTP'|'IMAP'|'MSN'|'KRB5'|'IKEV2'|'TFTP'|'NTP'|'DHCP'|'HTTP2'|'QUIC',
'Source': 'string',
'SourcePort': 'string',
'Direction': 'FORWARD'|'ANY',
'Destination': 'string',
'DestinationPort': 'string'
},
'RuleOptions': [
{
'Keyword': 'string',
'Settings': [
'string',
]
},
]
},
],
'StatelessRulesAndCustomActions': {
'StatelessRules': [
{
'RuleDefinition': {
'MatchAttributes': {
'Sources': [
{
'AddressDefinition': 'string'
},
],
'Destinations': [
{
'AddressDefinition': 'string'
},
],
'SourcePorts': [
{
'FromPort': 123,
'ToPort': 123
},
],
'DestinationPorts': [
{
'FromPort': 123,
'ToPort': 123
},
],
'Protocols': [
123,
],
'TCPFlags': [
{
'Flags': [
'FIN'|'SYN'|'RST'|'PSH'|'ACK'|'URG'|'ECE'|'CWR',
],
'Masks': [
'FIN'|'SYN'|'RST'|'PSH'|'ACK'|'URG'|'ECE'|'CWR',
]
},
]
},
'Actions': [
'string',
]
},
'Priority': 123
},
],
'CustomActions': [
{
'ActionName': 'string',
'ActionDefinition': {
'PublishMetricAction': {
'Dimensions': [
{
'Value': 'string'
},
]
}
}
},
]
}
},
'StatefulRuleOptions': {
'RuleOrder': 'DEFAULT_ACTION_ORDER'|'STRICT_ORDER'
}
},
Rules='string',
Type='STATELESS'|'STATEFUL',
Description='string',
DryRun=True|False,
EncryptionConfiguration={
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
SourceMetadata={
'SourceArn': 'string',
'SourceUpdateToken': 'string'
},
AnalyzeRuleGroup=True|False,
SummaryConfiguration={
'RuleOptions': [
'SID'|'MSG'|'METADATA',
]
}
)
string
[REQUIRED]
A token used for optimistic locking. Network Firewall returns a token to your requests that access the rule group. The token marks the state of the rule group resource at the time of the request.
To make changes to the rule group, you provide the token in your request. Network Firewall uses the token to ensure that the rule group hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the rule group again to get a current copy of it with a current token. Reapply your changes as needed, then try the operation again using the new token.
string
The Amazon Resource Name (ARN) of the rule group.
You must specify the ARN or the name, and you can specify both.
string
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
You must specify the ARN or the name, and you can specify both.
dict
An object that defines the rule group rules.
RuleVariables (dict) --
Settings that are available for use in the rules in the rule group. You can only use these for stateful rule groups.
IPSets (dict) --
A list of IP addresses and address ranges, in CIDR notation.
(string) --
(dict) --
A list of IP addresses and address ranges, in CIDR notation. This is part of a RuleVariables.
Definition (list) -- [REQUIRED]
The list of IP addresses and address ranges, in CIDR notation.
(string) --
PortSets (dict) --
A list of port ranges.
(string) --
(dict) --
A set of port ranges for use in the rules in a rule group.
Definition (list) --
The set of port ranges.
(string) --
ReferenceSets (dict) --
The list of a rule group's reference sets.
IPSetReferences (dict) --
The list of IP set references.
(string) --
(dict) --
Configures one or more IP set references for a Suricata-compatible rule group. This is used in CreateRuleGroup or UpdateRuleGroup. An IP set reference is a rule variable that references resources that you create and manage in another Amazon Web Services service, such as an Amazon VPC prefix list. Network Firewall IP set references enable you to dynamically update the contents of your rules. When you create, update, or delete the resource you are referencing in your rule, Network Firewall automatically updates the rule's content with the changes. For more information about IP set references in Network Firewall, see Using IP set references in the Network Firewall Developer Guide.
Network Firewall currently supports Amazon VPC prefix lists and resource groups in IP set references.
ReferenceArn (string) --
The Amazon Resource Name (ARN) of the resource that you are referencing in your rule group.
RulesSource (dict) -- [REQUIRED]
The stateful rules or stateless rules for the rule group.
RulesString (string) --
Stateful inspection criteria, provided in Suricata compatible rules. Suricata is an open-source threat detection framework that includes a standard rule-based language for network traffic inspection.
These rules contain the inspection criteria and the action to take for traffic that matches the criteria, so this type of rule group doesn't have a separate action setting.
RulesSourceList (dict) --
Stateful inspection criteria for a domain list rule group.
Targets (list) -- [REQUIRED]
The domains that you want to inspect for in your traffic flows. Valid domain specifications are the following:
Explicit names. For example, abc.example.com matches only the domain abc.example.com.
Names that use a domain wildcard, which you indicate with an initial ' .'. For example, .example.com matches example.com and matches all subdomains of example.com, such as abc.example.com and www.example.com.
(string) --
TargetTypes (list) -- [REQUIRED]
The protocols you want to inspect. Specify TLS_SNI for HTTPS. Specify HTTP_HOST for HTTP. You can specify either or both.
(string) --
GeneratedRulesType (string) -- [REQUIRED]
Whether you want to allow or deny access to the domains in your target list.
StatefulRules (list) --
An array of individual stateful rules inspection criteria to be used together in a stateful rule group. Use this option to specify simple Suricata rules with protocol, source and destination, ports, direction, and rule options. For information about the Suricata Rules format, see Rules Format.
(dict) --
A single Suricata rules specification, for use in a stateful rule group. Use this option to specify a simple Suricata rule with protocol, source and destination, ports, direction, and rule options. For information about the Suricata Rules format, see Rules Format.
Action (string) -- [REQUIRED]
Defines what Network Firewall should do with the packets in a traffic flow when the flow matches the stateful rule criteria. For all actions, Network Firewall performs the specified action and discontinues stateful inspection of the traffic flow.
The actions for a stateful rule are defined as follows:
PASS - Permits the packets to go to the intended destination.
DROP - Blocks the packets from going to the intended destination and sends an alert log message, if alert logging is configured in the Firewall LoggingConfiguration.
ALERT - Sends an alert log message, if alert logging is configured in the Firewall LoggingConfiguration. You can use this action to test a rule that you intend to use to drop traffic. You can enable the rule with ALERT action, verify in the logs that the rule is filtering as you want, then change the action to DROP.
REJECT - Drops traffic that matches the conditions of the stateful rule, and sends a TCP reset packet back to sender of the packet. A TCP reset packet is a packet with no payload and an RST bit contained in the TCP header flags. REJECT is available only for TCP traffic. This option doesn't support FTP or IMAP protocols.
Header (dict) -- [REQUIRED]
The stateful inspection criteria for this rule, used to inspect traffic flows.
Protocol (string) -- [REQUIRED]
The protocol to inspect for. To specify all, you can use IP, because all traffic on Amazon Web Services and on the internet is IP.
Source (string) -- [REQUIRED]
The source IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
SourcePort (string) -- [REQUIRED]
The source port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
Direction (string) -- [REQUIRED]
The direction of traffic flow to inspect. If set to ANY, the inspection matches bidirectional traffic, both from the source to the destination and from the destination to the source. If set to FORWARD, the inspection only matches traffic going from the source to the destination.
Destination (string) -- [REQUIRED]
The destination IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
DestinationPort (string) -- [REQUIRED]
The destination port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
RuleOptions (list) -- [REQUIRED]
Additional options for the rule. These are the Suricata RuleOptions settings.
(dict) --
Additional settings for a stateful rule. This is part of the StatefulRule configuration.
Keyword (string) -- [REQUIRED]
The keyword for the Suricata compatible rule option. You must include a sid (signature ID), and can optionally include other keywords. For information about Suricata compatible keywords, see Rule options in the Suricata documentation.
Settings (list) --
The settings of the Suricata compatible rule option. Rule options have zero or more setting values, and the number of possible and required settings depends on the Keyword. For more information about the settings for specific options, see Rule options.
(string) --
StatelessRulesAndCustomActions (dict) --
Stateless inspection criteria to be used in a stateless rule group.
StatelessRules (list) -- [REQUIRED]
Defines the set of stateless rules for use in a stateless rule group.
(dict) --
A single stateless rule. This is used in StatelessRulesAndCustomActions.
RuleDefinition (dict) -- [REQUIRED]
Defines the stateless 5-tuple packet inspection criteria and the action to take on a packet that matches the criteria.
MatchAttributes (dict) -- [REQUIRED]
Criteria for Network Firewall to use to inspect an individual packet in stateless rule inspection. Each match attributes set can include one or more items such as IP address, CIDR range, port number, protocol, and TCP flags.
Sources (list) --
The source IP addresses and address ranges to inspect for, in CIDR notation. If not specified, this matches with any source address.
(dict) --
A single IP address specification. This is used in the MatchAttributes source and destination specifications.
AddressDefinition (string) -- [REQUIRED]
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
Destinations (list) --
The destination IP addresses and address ranges to inspect for, in CIDR notation. If not specified, this matches with any destination address.
(dict) --
A single IP address specification. This is used in the MatchAttributes source and destination specifications.
AddressDefinition (string) -- [REQUIRED]
Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.
Examples:
To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.
To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.
To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.
To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.
For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.
SourcePorts (list) --
The source port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
If not specified, this matches with any source port.
This setting is only used for protocols 6 (TCP) and 17 (UDP).
(dict) --
A single port range specification. This is used for source and destination port ranges in the stateless rule MatchAttributes, SourcePorts, and DestinationPorts settings.
FromPort (integer) -- [REQUIRED]
The lower limit of the port range. This must be less than or equal to the ToPort specification.
ToPort (integer) -- [REQUIRED]
The upper limit of the port range. This must be greater than or equal to the FromPort specification.
DestinationPorts (list) --
The destination port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.
This setting is only used for protocols 6 (TCP) and 17 (UDP).
(dict) --
A single port range specification. This is used for source and destination port ranges in the stateless rule MatchAttributes, SourcePorts, and DestinationPorts settings.
FromPort (integer) -- [REQUIRED]
The lower limit of the port range. This must be less than or equal to the ToPort specification.
ToPort (integer) -- [REQUIRED]
The upper limit of the port range. This must be greater than or equal to the FromPort specification.
Protocols (list) --
The protocols to inspect for, specified using the assigned internet protocol number (IANA) for each protocol. If not specified, this matches with any protocol.
(integer) --
TCPFlags (list) --
The TCP flags and masks to inspect for. If not specified, this matches with any settings. This setting is only used for protocol 6 (TCP).
(dict) --
TCP flags and masks to inspect packets for, used in stateless rules MatchAttributes settings.
Flags (list) -- [REQUIRED]
Used in conjunction with the Masks setting to define the flags that must be set and flags that must not be set in order for the packet to match. This setting can only specify values that are also specified in the Masks setting.
For the flags that are specified in the masks setting, the following must be true for the packet to match:
The ones that are set in this flags setting must be set in the packet.
The ones that are not set in this flags setting must also not be set in the packet.
(string) --
Masks (list) --
The set of flags to consider in the inspection. To inspect all flags in the valid values list, leave this with no setting.
(string) --
Actions (list) -- [REQUIRED]
The actions to take on a packet that matches one of the stateless rule definition's match attributes. You must specify a standard action and you can add custom actions.
For every rule, you must specify exactly one of the following standard actions.
aws:pass - Discontinues all inspection of the packet and permits it to go to its intended destination.
aws:drop - Discontinues all inspection of the packet and blocks it from going to its intended destination.
aws:forward_to_sfe - Discontinues stateless inspection of the packet and forwards it to the stateful rule engine for inspection.
Additionally, you can specify a custom action. To do this, you define a custom action by name and type, then provide the name you've assigned to the action in this Actions setting. For information about the options, see CustomAction.
To provide more than one action in this setting, separate the settings with a comma. For example, if you have a custom PublishMetrics action that you've named MyMetricsAction, then you could specify the standard action aws:pass and the custom action with [“aws:pass”, “MyMetricsAction”].
(string) --
Priority (integer) -- [REQUIRED]
Indicates the order in which to run this rule relative to all of the rules that are defined for a stateless rule group. Network Firewall evaluates the rules in a rule group starting with the lowest priority setting. You must ensure that the priority settings are unique for the rule group.
Each stateless rule group uses exactly one StatelessRulesAndCustomActions object, and each StatelessRulesAndCustomActions contains exactly one StatelessRules object. To ensure unique priority settings for your rule groups, set unique priorities for the stateless rules that you define inside any single StatelessRules object.
You can change the priority settings of your rules at any time. To make it easier to insert rules later, number them so there's a wide range in between, for example use 100, 200, and so on.
CustomActions (list) --
Defines an array of individual custom action definitions that are available for use by the stateless rules in this StatelessRulesAndCustomActions specification. You name each custom action that you define, and then you can use it by name in your StatelessRule RuleDefinition Actions specification.
(dict) --
An optional, non-standard action to use for stateless packet handling. You can define this in addition to the standard action that you must specify.
You define and name the custom actions that you want to be able to use, and then you reference them by name in your actions settings.
You can use custom actions in the following places:
In a rule group's StatelessRulesAndCustomActions specification. The custom actions are available for use by name inside the StatelessRulesAndCustomActions where you define them. You can use them for your stateless rule actions to specify what to do with a packet that matches the rule's match attributes.
In a FirewallPolicy specification, in StatelessCustomActions. The custom actions are available for use inside the policy where you define them. You can use them for the policy's default stateless actions settings to specify what to do with packets that don't match any of the policy's stateless rules.
ActionName (string) -- [REQUIRED]
The descriptive name of the custom action. You can't change the name of a custom action after you create it.
ActionDefinition (dict) -- [REQUIRED]
The custom action associated with the action name.
PublishMetricAction (dict) --
Stateless inspection criteria that publishes the specified metrics to Amazon CloudWatch for the matching packet. This setting defines a CloudWatch dimension value to be published.
You can pair this custom action with any of the standard stateless rule actions. For example, you could pair this in a rule action with the standard action that forwards the packet for stateful inspection. Then, when a packet matches the rule, Network Firewall publishes metrics for the packet and forwards it.
Dimensions (list) -- [REQUIRED]
(dict) --
The value to use in an Amazon CloudWatch custom metric dimension. This is used in the PublishMetrics CustomAction. A CloudWatch custom metric dimension is a name/value pair that's part of the identity of a metric.
Network Firewall sets the dimension name to CustomAction and you provide the dimension value.
For more information about CloudWatch custom metric dimensions, see Publishing Custom Metrics in the Amazon CloudWatch User Guide.
Value (string) -- [REQUIRED]
The value to use in the custom metric dimension.
StatefulRuleOptions (dict) --
Additional options governing how Network Firewall handles stateful rules. The policies where you use your stateful rule group must have stateful rule options settings that are compatible with these settings. Some limitations apply; for more information, see Strict evaluation order in the Network Firewall Developer Guide.
RuleOrder (string) --
Indicates how to manage the order of the rule evaluation for the rule group. DEFAULT_ACTION_ORDER is the default behavior. Stateful rules are provided to the rule engine as Suricata compatible strings, and Suricata evaluates them based on certain settings. For more information, see Evaluation order for stateful rules in the Network Firewall Developer Guide.
string
A string containing stateful rule group rules specifications in Suricata flat format, with one rule per line. Use this to import your existing Suricata compatible rule groups.
You can provide your rule group specification in Suricata flat format through this setting when you create or update your rule group. The call response returns a RuleGroup object that Network Firewall has populated from your string.
string
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
string
A description of the rule group.
boolean
Indicates whether you want Network Firewall to just check the validity of the request, rather than run the request.
If set to TRUE, Network Firewall checks whether the request can run successfully, but doesn't actually make the requested changes. The call returns the value that the request would return if you ran it with dry run set to FALSE, but doesn't make additions or changes to your resources. This option allows you to make sure that you have the required permissions to run the request and that your request parameters are valid.
If set to FALSE, Network Firewall makes the requested changes to your resources.
dict
A complex type that contains settings for encryption of your rule group resources.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) -- [REQUIRED]
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
dict
A complex type that contains metadata about the rule group that your own rule group is copied from. You can use the metadata to keep track of updates made to the originating rule group.
SourceArn (string) --
The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
SourceUpdateToken (string) --
The update token of the Amazon Web Services managed rule group that your own rule group is copied from. To determine the update token for the managed rule group, call DescribeRuleGroup.
boolean
Indicates whether you want Network Firewall to analyze the stateless rules in the rule group for rule behavior such as asymmetric routing. If set to TRUE, Network Firewall runs the analysis and then updates the rule group for you. To run the stateless rule group analyzer without updating the rule group, set DryRun to TRUE.
dict
Updates the selected summary configuration for a rule group.
Changes affect subsequent responses from DescribeRuleGroupSummary.
RuleOptions (list) --
Specifies the selected rule options returned by DescribeRuleGroupSummary.
(string) --
dict
Response Syntax
{
'UpdateToken': 'string',
'RuleGroupResponse': {
'RuleGroupArn': 'string',
'RuleGroupName': 'string',
'RuleGroupId': 'string',
'Description': 'string',
'Type': 'STATELESS'|'STATEFUL',
'Capacity': 123,
'RuleGroupStatus': 'ACTIVE'|'DELETING'|'ERROR',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'ConsumedCapacity': 123,
'NumberOfAssociations': 123,
'EncryptionConfiguration': {
'KeyId': 'string',
'Type': 'CUSTOMER_KMS'|'AWS_OWNED_KMS_KEY'
},
'SourceMetadata': {
'SourceArn': 'string',
'SourceUpdateToken': 'string'
},
'SnsTopic': 'string',
'LastModifiedTime': datetime(2015, 1, 1),
'AnalysisResults': [
{
'IdentifiedRuleIds': [
'string',
],
'IdentifiedType': 'STATELESS_RULE_FORWARDING_ASYMMETRICALLY'|'STATELESS_RULE_CONTAINS_TCP_FLAGS',
'AnalysisDetail': 'string'
},
],
'SummaryConfiguration': {
'RuleOptions': [
'SID'|'MSG'|'METADATA',
]
}
}
}
Response Structure
(dict) --
UpdateToken (string) --
A token used for optimistic locking. Network Firewall returns a token to your requests that access the rule group. The token marks the state of the rule group resource at the time of the request.
To make changes to the rule group, you provide the token in your request. Network Firewall uses the token to ensure that the rule group hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the rule group again to get a current copy of it with a current token. Reapply your changes as needed, then try the operation again using the new token.
RuleGroupResponse (dict) --
The high-level properties of a rule group. This, along with the RuleGroup, define the rule group. You can retrieve all objects for a rule group by calling DescribeRuleGroup.
RuleGroupArn (string) --
The Amazon Resource Name (ARN) of the rule group.
RuleGroupName (string) --
The descriptive name of the rule group. You can't change the name of a rule group after you create it.
RuleGroupId (string) --
The unique identifier for the rule group.
Description (string) --
A description of the rule group.
Type (string) --
Indicates whether the rule group is stateless or stateful. If the rule group is stateless, it contains stateless rules. If it is stateful, it contains stateful rules.
Capacity (integer) --
The maximum operating resources that this rule group can use. Rule group capacity is fixed at creation. When you update a rule group, you are limited to this capacity. When you reference a rule group from a firewall policy, Network Firewall reserves this capacity for the rule group.
You can retrieve the capacity that would be required for a rule group before you create the rule group by calling CreateRuleGroup with DryRun set to TRUE.
RuleGroupStatus (string) --
Detailed information about the current status of a rule group.
Tags (list) --
The key:value pairs to associate with the resource.
(dict) --
A key:value pair associated with an Amazon Web Services resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each Amazon Web Services resource.
Key (string) --
The part of the key:value pair that defines a tag. You can use a tag key to describe a category of information, such as "customer." Tag keys are case-sensitive.
Value (string) --
The part of the key:value pair that defines a tag. You can use a tag value to describe a specific value within a category, such as "companyA" or "companyB." Tag values are case-sensitive.
ConsumedCapacity (integer) --
The number of capacity units currently consumed by the rule group rules.
NumberOfAssociations (integer) --
The number of firewall policies that use this rule group.
EncryptionConfiguration (dict) --
A complex type that contains the Amazon Web Services KMS encryption configuration settings for your rule group.
KeyId (string) --
The ID of the Amazon Web Services Key Management Service (KMS) customer managed key. You can use any of the key identifiers that KMS supports, unless you're using a key that's managed by another account. If you're using a key managed by another account, then specify the key ARN. For more information, see Key ID in the Amazon Web Services KMS Developer Guide.
Type (string) --
The type of Amazon Web Services KMS key to use for encryption of your Network Firewall resources.
SourceMetadata (dict) --
A complex type that contains metadata about the rule group that your own rule group is copied from. You can use the metadata to track the version updates made to the originating rule group.
SourceArn (string) --
The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
SourceUpdateToken (string) --
The update token of the Amazon Web Services managed rule group that your own rule group is copied from. To determine the update token for the managed rule group, call DescribeRuleGroup.
SnsTopic (string) --
The Amazon Resource Name (ARN) of the Amazon Simple Notification Service SNS topic that's used to record changes to the managed rule group. You can subscribe to the SNS topic to receive notifications when the managed rule group is modified, such as for new versions and for version expiration. For more information, see the Amazon Simple Notification Service Developer Guide..
LastModifiedTime (datetime) --
The last time that the rule group was changed.
AnalysisResults (list) --
The list of analysis results for AnalyzeRuleGroup. If you set AnalyzeRuleGroup to TRUE in CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup, Network Firewall analyzes the rule group and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in the list of analysis results.
(dict) --
The analysis result for Network Firewall's stateless rule group analyzer. Every time you call CreateRuleGroup, UpdateRuleGroup, or DescribeRuleGroup on a stateless rule group, Network Firewall analyzes the stateless rule groups in your account and identifies the rules that might adversely effect your firewall's functionality. For example, if Network Firewall detects a rule that's routing traffic asymmetrically, which impacts the service's ability to properly process traffic, the service includes the rule in a list of analysis results.
The AnalysisResult data type is not related to traffic analysis reports you generate using StartAnalysisReport. For information on traffic analysis report results, see AnalysisTypeReportResult.
IdentifiedRuleIds (list) --
The priority number of the stateless rules identified in the analysis.
(string) --
IdentifiedType (string) --
The types of rule configurations that Network Firewall analyzes your rule groups for. Network Firewall analyzes stateless rule groups for the following types of rule configurations:
STATELESS_RULE_FORWARDING_ASYMMETRICALLY Cause: One or more stateless rules with the action pass or forward are forwarding traffic asymmetrically. Specifically, the rule's set of source IP addresses or their associated port numbers, don't match the set of destination IP addresses or their associated port numbers. To mitigate: Make sure that there's an existing return path. For example, if the rule allows traffic from source 10.1.0.0/24 to destination 20.1.0.0/24, you should allow return traffic from source 20.1.0.0/24 to destination 10.1.0.0/24.
STATELESS_RULE_CONTAINS_TCP_FLAGS Cause: At least one stateless rule with the action pass or forward contains TCP flags that are inconsistent in the forward and return directions. To mitigate: Prevent asymmetric routing issues caused by TCP flags by following these actions:
Remove unnecessary TCP flag inspections from the rules.
If you need to inspect TCP flags, check that the rules correctly account for changes in TCP flags throughout the TCP connection cycle, for example SYN and ACK flags used in a 3-way TCP handshake.
AnalysisDetail (string) --
Provides analysis details for the identified rule.
SummaryConfiguration (dict) --
A complex type containing the currently selected rule option fields that will be displayed for rule summarization returned by DescribeRuleGroupSummary.
The RuleOptions specified in SummaryConfiguration
Rule metadata organization preferences
RuleOptions (list) --
Specifies the selected rule options returned by DescribeRuleGroupSummary.
(string) --