UpdateWebACL - Amazon WAFV2
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UpdateWebACL

Updates the specified WebACL. While updating a web ACL, Amazon WAF provides continuous coverage to the resources that you have associated with the web ACL.

Note

This operation completely replaces the mutable specifications that you already have for the web ACL with the ones that you provide to this call.

To modify a web ACL, do the following:

  1. Retrieve it by calling GetWebACL

  2. Update its settings as needed

  3. Provide the complete web ACL specification to this call

A web ACL defines a collection of rules to use to inspect and control web requests. Each rule has a statement that defines what to look for in web requests and an action that Amazon WAF applies to requests that match the statement. In the web ACL, you assign a default action to take (allow, block) for any request that does not match any of the rules. The rules in a web ACL can be a combination of the types Rule, RuleGroup, and managed rule group. You can associate a web ACL with one or more Amazon resources to protect. The resources can be an Amazon CloudFront distribution, an Amazon API Gateway REST API, an Application Load Balancer, an Amazon AppSync GraphQL API, an Amazon Cognito user pool, an Amazon App Runner service, or an Amazon Verified Access instance.

Temporary inconsistencies during updates

When you create or change a web ACL or other Amazon WAF resources, the changes take a small amount of time to propagate to all areas where the resources are stored. The propagation time can be from a few seconds to a number of minutes.

The following are examples of the temporary inconsistencies that you might notice during change propagation:

  • After you create a web ACL, if you try to associate it with a resource, you might get an exception indicating that the web ACL is unavailable.

  • After you add a rule group to a web ACL, the new rule group rules might be in effect in one area where the web ACL is used and not in another.

  • After you change a rule action setting, you might see the old action in some places and the new action in others.

  • After you add an IP address to an IP set that is in use in a blocking rule, the new address might be blocked in one area while still allowed in another.

Request Syntax

{ "AssociationConfig": { "RequestBody": { "string" : { "DefaultSizeInspectionLimit": "string" } } }, "CaptchaConfig": { "ImmunityTimeProperty": { "ImmunityTime": number } }, "ChallengeConfig": { "ImmunityTimeProperty": { "ImmunityTime": number } }, "CustomResponseBodies": { "string" : { "Content": "string", "ContentType": "string" } }, "DefaultAction": { "Allow": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Block": { "CustomResponse": { "CustomResponseBodyKey": "string", "ResponseCode": number, "ResponseHeaders": [ { "Name": "string", "Value": "string" } ] } } }, "Description": "string", "Id": "string", "LockToken": "string", "Name": "string", "Rules": [ { "Action": { "Allow": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Block": { "CustomResponse": { "CustomResponseBodyKey": "string", "ResponseCode": number, "ResponseHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Captcha": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Challenge": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Count": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } } }, "CaptchaConfig": { "ImmunityTimeProperty": { "ImmunityTime": number } }, "ChallengeConfig": { "ImmunityTimeProperty": { "ImmunityTime": number } }, "Name": "string", "OverrideAction": { "Count": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "None": { } }, "Priority": number, "RuleLabels": [ { "Name": "string" } ], "Statement": { "AndStatement": { "Statements": [ "Statement" ] }, "ByteMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { "OversizeHandling": "string" }, "Cookies": { "MatchPattern": { "All": { }, "ExcludedCookies": [ "string" ], "IncludedCookies": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "HeaderOrder": { "OversizeHandling": "string" }, "Headers": { "MatchPattern": { "All": { }, "ExcludedHeaders": [ "string" ], "IncludedHeaders": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "JA3Fingerprint": { "FallbackBehavior": "string" }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "PositionalConstraint": "string", "SearchString": blob, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "GeoMatchStatement": { "CountryCodes": [ "string" ], "ForwardedIPConfig": { "FallbackBehavior": "string", "HeaderName": "string" } }, "IPSetReferenceStatement": { "ARN": "string", "IPSetForwardedIPConfig": { "FallbackBehavior": "string", "HeaderName": "string", "Position": "string" } }, "LabelMatchStatement": { "Key": "string", "Scope": "string" }, "ManagedRuleGroupStatement": { "ExcludedRules": [ { "Name": "string" } ], "ManagedRuleGroupConfigs": [ { "AWSManagedRulesACFPRuleSet": { "CreationPath": "string", "EnableRegexInPath": boolean, "RegistrationPagePath": "string", "RequestInspection": { "AddressFields": [ { "Identifier": "string" } ], "EmailField": { "Identifier": "string" }, "PasswordField": { "Identifier": "string" }, "PayloadType": "string", "PhoneNumberFields": [ { "Identifier": "string" } ], "UsernameField": { "Identifier": "string" } }, "ResponseInspection": { "BodyContains": { "FailureStrings": [ "string" ], "SuccessStrings": [ "string" ] }, "Header": { "FailureValues": [ "string" ], "Name": "string", "SuccessValues": [ "string" ] }, "Json": { "FailureValues": [ "string" ], "Identifier": "string", "SuccessValues": [ "string" ] }, "StatusCode": { "FailureCodes": [ number ], "SuccessCodes": [ number ] } } }, "AWSManagedRulesATPRuleSet": { "EnableRegexInPath": boolean, "LoginPath": "string", "RequestInspection": { "PasswordField": { "Identifier": "string" }, "PayloadType": "string", "UsernameField": { "Identifier": "string" } }, "ResponseInspection": { "BodyContains": { "FailureStrings": [ "string" ], "SuccessStrings": [ "string" ] }, "Header": { "FailureValues": [ "string" ], "Name": "string", "SuccessValues": [ "string" ] }, "Json": { "FailureValues": [ "string" ], "Identifier": "string", "SuccessValues": [ "string" ] }, "StatusCode": { "FailureCodes": [ number ], "SuccessCodes": [ number ] } } }, "AWSManagedRulesBotControlRuleSet": { "EnableMachineLearning": boolean, "InspectionLevel": "string" }, "LoginPath": "string", "PasswordField": { "Identifier": "string" }, "PayloadType": "string", "UsernameField": { "Identifier": "string" } } ], "Name": "string", "RuleActionOverrides": [ { "ActionToUse": { "Allow": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Block": { "CustomResponse": { "CustomResponseBodyKey": "string", "ResponseCode": number, "ResponseHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Captcha": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Challenge": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Count": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } } }, "Name": "string" } ], "ScopeDownStatement": "Statement", "VendorName": "string", "Version": "string" }, "NotStatement": { "Statement": "Statement" }, "OrStatement": { "Statements": [ "Statement" ] }, "RateBasedStatement": { "AggregateKeyType": "string", "CustomKeys": [ { "Cookie": { "Name": "string", "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "ForwardedIP": { }, "Header": { "Name": "string", "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "HTTPMethod": { }, "IP": { }, "LabelNamespace": { "Namespace": "string" }, "QueryArgument": { "Name": "string", "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "QueryString": { "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "UriPath": { "TextTransformations": [ { "Priority": number, "Type": "string" } ] } } ], "EvaluationWindowSec": number, "ForwardedIPConfig": { "FallbackBehavior": "string", "HeaderName": "string" }, "Limit": number, "ScopeDownStatement": "Statement" }, "RegexMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { "OversizeHandling": "string" }, "Cookies": { "MatchPattern": { "All": { }, "ExcludedCookies": [ "string" ], "IncludedCookies": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "HeaderOrder": { "OversizeHandling": "string" }, "Headers": { "MatchPattern": { "All": { }, "ExcludedHeaders": [ "string" ], "IncludedHeaders": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "JA3Fingerprint": { "FallbackBehavior": "string" }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "RegexString": "string", "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "RegexPatternSetReferenceStatement": { "ARN": "string", "FieldToMatch": { "AllQueryArguments": { }, "Body": { "OversizeHandling": "string" }, "Cookies": { "MatchPattern": { "All": { }, "ExcludedCookies": [ "string" ], "IncludedCookies": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "HeaderOrder": { "OversizeHandling": "string" }, "Headers": { "MatchPattern": { "All": { }, "ExcludedHeaders": [ "string" ], "IncludedHeaders": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "JA3Fingerprint": { "FallbackBehavior": "string" }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "RuleGroupReferenceStatement": { "ARN": "string", "ExcludedRules": [ { "Name": "string" } ], "RuleActionOverrides": [ { "ActionToUse": { "Allow": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Block": { "CustomResponse": { "CustomResponseBodyKey": "string", "ResponseCode": number, "ResponseHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Captcha": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Challenge": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Count": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } } }, "Name": "string" } ] }, "SizeConstraintStatement": { "ComparisonOperator": "string", "FieldToMatch": { "AllQueryArguments": { }, "Body": { "OversizeHandling": "string" }, "Cookies": { "MatchPattern": { "All": { }, "ExcludedCookies": [ "string" ], "IncludedCookies": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "HeaderOrder": { "OversizeHandling": "string" }, "Headers": { "MatchPattern": { "All": { }, "ExcludedHeaders": [ "string" ], "IncludedHeaders": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "JA3Fingerprint": { "FallbackBehavior": "string" }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "Size": number, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "SqliMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { "OversizeHandling": "string" }, "Cookies": { "MatchPattern": { "All": { }, "ExcludedCookies": [ "string" ], "IncludedCookies": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "HeaderOrder": { "OversizeHandling": "string" }, "Headers": { "MatchPattern": { "All": { }, "ExcludedHeaders": [ "string" ], "IncludedHeaders": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "JA3Fingerprint": { "FallbackBehavior": "string" }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "SensitivityLevel": "string", "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "XssMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { "OversizeHandling": "string" }, "Cookies": { "MatchPattern": { "All": { }, "ExcludedCookies": [ "string" ], "IncludedCookies": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "HeaderOrder": { "OversizeHandling": "string" }, "Headers": { "MatchPattern": { "All": { }, "ExcludedHeaders": [ "string" ], "IncludedHeaders": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "JA3Fingerprint": { "FallbackBehavior": "string" }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string", "OversizeHandling": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "TextTransformations": [ { "Priority": number, "Type": "string" } ] } }, "VisibilityConfig": { "CloudWatchMetricsEnabled": boolean, "MetricName": "string", "SampledRequestsEnabled": boolean } } ], "Scope": "string", "TokenDomains": [ "string" ], "VisibilityConfig": { "CloudWatchMetricsEnabled": boolean, "MetricName": "string", "SampledRequestsEnabled": boolean } }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

AssociationConfig

Specifies custom configurations for the associations between the web ACL and protected resources.

Use this to customize the maximum size of the request body that your protected resources forward to Amazon WAF for inspection. You can customize this setting for CloudFront, API Gateway, Amazon Cognito, App Runner, or Verified Access resources. The default setting is 16 KB (16,384 bytes).

Note

You are charged additional fees when your protected resources forward body sizes that are larger than the default. For more information, see Amazon WAF Pricing.

For Application Load Balancer and Amazon AppSync, the limit is fixed at 8 KB (8,192 bytes).

Type: AssociationConfig object

Required: No

CaptchaConfig

Specifies how Amazon WAF should handle CAPTCHA evaluations for rules that don't have their own CaptchaConfig settings. If you don't specify this, Amazon WAF uses its default settings for CaptchaConfig.

Type: CaptchaConfig object

Required: No

ChallengeConfig

Specifies how Amazon WAF should handle challenge evaluations for rules that don't have their own ChallengeConfig settings. If you don't specify this, Amazon WAF uses its default settings for ChallengeConfig.

Type: ChallengeConfig object

Required: No

CustomResponseBodies

A map of custom response keys and content bodies. When you create a rule with a block action, you can send a custom response to the web request. You define these for the web ACL, and then use them in the rules and default actions that you define in the web ACL.

For information about customizing web requests and responses, see Customizing web requests and responses in Amazon WAF in the Amazon WAF Developer Guide.

For information about the limits on count and size for custom request and response settings, see Amazon WAF quotas in the Amazon WAF Developer Guide.

Type: String to CustomResponseBody object map

Map Entries: Maximum number of items.

Key Length Constraints: Minimum length of 1. Maximum length of 128.

Key Pattern: ^[\w\-]+$

Required: No

DefaultAction

The action to perform if none of the Rules contained in the WebACL match.

Type: DefaultAction object

Required: Yes

Description

A description of the web ACL that helps with identification.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: ^[\w+=:#@/\-,\.][\w+=:#@/\-,\.\s]+[\w+=:#@/\-,\.]$

Required: No

Id

The unique identifier for the web ACL. This ID is returned in the responses to create and list commands. You provide it to operations like update and delete.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

Pattern: ^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$

Required: Yes

LockToken

A token used for optimistic locking. Amazon WAF returns a token to your get and list requests, to mark the state of the entity at the time of the request. To make changes to the entity associated with the token, you provide the token to operations like update and delete. Amazon WAF uses the token to ensure that no changes have been made to the entity since you last retrieved it. If a change has been made, the update fails with a WAFOptimisticLockException. If this happens, perform another get, and use the new token returned by that operation.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

Pattern: ^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$

Required: Yes

Name

The name of the web ACL. You cannot change the name of a web ACL after you create it.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: ^[\w\-]+$

Required: Yes

Rules

The Rule statements used to identify the web requests that you want to manage. Each rule includes one top-level statement that Amazon WAF uses to identify matching web requests, and parameters that govern how Amazon WAF handles them.

Type: Array of Rule objects

Required: No

Scope

Specifies whether this is for an Amazon CloudFront distribution or for a regional application. A regional application can be an Application Load Balancer (ALB), an Amazon API Gateway REST API, an Amazon AppSync GraphQL API, an Amazon Cognito user pool, an Amazon App Runner service, or an Amazon Verified Access instance.

To work with CloudFront, you must also specify the Region US East (N. Virginia) as follows:

  • CLI - Specify the Region when you use the CloudFront scope: --scope=CLOUDFRONT --region=us-east-1.

  • API and SDKs - For all calls, use the Region endpoint us-east-1.

Type: String

Valid Values: CLOUDFRONT | REGIONAL

Required: Yes

TokenDomains

Specifies the domains that Amazon WAF should accept in a web request token. This enables the use of tokens across multiple protected websites. When Amazon WAF provides a token, it uses the domain of the Amazon resource that the web ACL is protecting. If you don't specify a list of token domains, Amazon WAF accepts tokens only for the domain of the protected resource. With a token domain list, Amazon WAF accepts the resource's host domain plus all domains in the token domain list, including their prefixed subdomains.

Example JSON: "TokenDomains": { "mywebsite.com", "myotherwebsite.com" }

Public suffixes aren't allowed. For example, you can't use gov.au or co.uk as token domains.

Type: Array of strings

Length Constraints: Minimum length of 1. Maximum length of 253.

Pattern: ^[\w\.\-/]+$

Required: No

VisibilityConfig

Defines and enables Amazon CloudWatch metrics and web request sample collection.

Type: VisibilityConfig object

Required: Yes

Response Syntax

{ "NextLockToken": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

NextLockToken

A token used for optimistic locking. Amazon WAF returns this token to your update requests. You use NextLockToken in the same manner as you use LockToken.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

Pattern: ^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$

Errors

For information about the errors that are common to all actions, see Common Errors.

WAFConfigurationWarningException

The operation failed because you are inspecting the web request body, headers, or cookies without specifying how to handle oversize components. Rules that inspect the body must either provide an OversizeHandling configuration or they must be preceded by a SizeConstraintStatement that blocks the body content from being too large. Rules that inspect the headers or cookies must provide an OversizeHandling configuration.

Provide the handling configuration and retry your operation.

Alternately, you can suppress this warning by adding the following tag to the resource that you provide to this operation: Tag (key:WAF:OversizeFieldsHandlingConstraintOptOut, value:true).

HTTP Status Code: 400

WAFDuplicateItemException

Amazon WAF couldn’t perform the operation because the resource that you tried to save is a duplicate of an existing one.

HTTP Status Code: 400

WAFExpiredManagedRuleGroupVersionException

The operation failed because the specified version for the managed rule group has expired. You can retrieve the available versions for the managed rule group by calling ListAvailableManagedRuleGroupVersions.

HTTP Status Code: 400

WAFInternalErrorException

Your request is valid, but Amazon WAF couldn’t perform the operation because of a system problem. Retry your request.

HTTP Status Code: 500

WAFInvalidOperationException

The operation isn't valid.

HTTP Status Code: 400

WAFInvalidParameterException

The operation failed because Amazon WAF didn't recognize a parameter in the request. For example:

  • You specified a parameter name or value that isn't valid.

  • Your nested statement isn't valid. You might have tried to nest a statement that can’t be nested.

  • You tried to update a WebACL with a DefaultAction that isn't among the types available at DefaultAction.

  • Your request references an ARN that is malformed, or corresponds to a resource with which a web ACL can't be associated.

HTTP Status Code: 400

WAFInvalidResourceException

Amazon WAF couldn’t perform the operation because the resource that you requested isn’t valid. Check the resource, and try again.

HTTP Status Code: 400

WAFLimitsExceededException

Amazon WAF couldn’t perform the operation because you exceeded your resource limit. For example, the maximum number of WebACL objects that you can create for an Amazon account. For more information, see Amazon WAF quotas in the Amazon WAF Developer Guide.

HTTP Status Code: 400

WAFNonexistentItemException

Amazon WAF couldn’t perform the operation because your resource doesn't exist. If you've just created a resource that you're using in this operation, you might just need to wait a few minutes. It can take from a few seconds to a number of minutes for changes to propagate.

HTTP Status Code: 400

WAFOptimisticLockException

Amazon WAF couldn’t save your changes because you tried to update or delete a resource that has changed since you last retrieved it. Get the resource again, make any changes you need to make to the new copy, and retry your operation.

HTTP Status Code: 400

WAFSubscriptionNotFoundException

You tried to use a managed rule group that's available by subscription, but you aren't subscribed to it yet.

HTTP Status Code: 400

WAFUnavailableEntityException

Amazon WAF couldn’t retrieve a resource that you specified for this operation. If you've just created a resource that you're using in this operation, you might just need to wait a few minutes. It can take from a few seconds to a number of minutes for changes to propagate. Verify the resources that you are specifying in your request parameters and then retry the operation.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific Amazon SDKs, see the following: