> This is *AWS WAF Classic* documentation.

For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

The `AWS::WAFRegional::ByteMatchSet` resource creates an AWS WAF `ByteMatchSet` that identifies a part of a web request that you want to inspect.

CfnByteMatchSet

A friendly name or description of the `ByteMatchSet` .

You can't change `Name` after you create a `ByteMatchSet` .

name

Specifies the bytes (typically a string that corresponds with ASCII characters) that you want AWS WAF to search for in web requests, the location in requests that you want AWS WAF to search, and other settings.

byteMatchTuples

> AWS WAF Classic support will end on September 30, 2025.

>
> This is *AWS WAF Classic* documentation. For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

Contains one or more countries that AWS WAF will search for.

CfnGeoMatchSet

A friendly name or description of the `GeoMatchSet` .

You can't change the name of an `GeoMatchSet` after you create it.

An array of `GeoMatchConstraint` objects, which contain the country that you want AWS WAF to search for.

geoMatchConstraints

> AWS WAF Classic support will end on September 30, 2025.

>
> This is *AWS WAF Classic* documentation. For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

Contains one or more IP addresses or blocks of IP addresses specified in Classless Inter-Domain Routing (CIDR) notation. AWS WAF supports IPv4 address ranges: /8 and any range between /16 through /32. AWS WAF supports IPv6 address ranges: /24, /32, /48, /56, /64, and /128.

To specify an individual IP address, you specify the four-part IP address followed by a `/32` , for example, 192.0.2.0/32. To block a range of IP addresses, you can specify /8 or any range between /16 through /32 (for IPv4) or /24, /32, /48, /56, /64, or /128 (for IPv6). For more information about CIDR notation, see the Wikipedia entry [Classless Inter-Domain Routing](https://docs.aws.amazon.com/https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing) .

CfnIPSet

A friendly name or description of the `IPSet` .

You can't change the name of an `IPSet` after you create it.

The IP address type ( `IPV4` or `IPV6` ) and the IP address range (in CIDR notation) that web requests originate from.

ipSetDescriptors

> This is *AWS WAF Classic* documentation.

For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

A `RateBasedRule` is identical to a regular `Rule` , with one addition: a `RateBasedRule` counts the number of requests that arrive from a specified IP address every five minutes. For example, based on recent requests that you've seen from an attacker, you might create a `RateBasedRule` that includes the following conditions:

- The requests come from 192.0.2.44.
- They contain the value `BadBot` in the `User-Agent` header.

In the rule, you also define the rate limit as 15,000.

Requests that meet both of these conditions and exceed 15,000 requests every five minutes trigger the rule's action (block or count), which is defined in the web ACL.

Note you can only create rate-based rules using an CloudFormation template. To add the rate-based rules created through CloudFormation to a web ACL, use the AWS WAF console, API, or command line interface (CLI). For more information, see [UpdateWebACL](https://docs.aws.amazon.com/waf/latest/APIReference/API_regional_UpdateWebACL.html) .

CfnRateBasedRule

A name for the metrics for a `RateBasedRule` .

The name can contain only alphanumeric characters (A-Z, a-z, 0-9), with maximum length 128 and minimum length one. It can't contain whitespace or metric names reserved for AWS WAF , including "All" and "Default_Action." You can't change the name of the metric after you create the `RateBasedRule` .

metricName

A friendly name or description for a `RateBasedRule` .

You can't change the name of a `RateBasedRule` after you create it.

The field that AWS WAF uses to determine if requests are likely arriving from single source and thus subject to rate monitoring.

The only valid value for `RateKey` is `IP` . `IP` indicates that requests arriving from the same IP address are subject to the `RateLimit` that is specified in the `RateBasedRule` .

rateKey

The maximum number of requests, which have an identical value in the field specified by the `RateKey` , allowed in a five-minute period.

If the number of requests exceeds the `RateLimit` and the other predicates specified in the rule are also met, AWS WAF triggers the action that is specified for this rule.

rateLimit

The `Predicates` object contains one `Predicate` element for each `ByteMatchSet` , `IPSet` , or `SqlInjectionMatchSet>` object that you want to include in a `RateBasedRule` .

matchPredicates

The `RegexPatternSet` specifies the regular expression (regex) pattern that you want AWS WAF to search for, such as `B[a@]dB[o0]t` .

You can then configure AWS WAF to reject those requests.

Note that you can only create regex pattern sets using a CloudFormation template. To add the regex pattern sets created through CloudFormation to a RegexMatchSet, use the AWS WAF console, API, or command line interface (CLI). For more information, see [UpdateRegexMatchSet](https://docs.aws.amazon.com/waf/latest/APIReference/API_regional_UpdateRegexMatchSet.html) .

CfnRegexPatternSet

A friendly name or description of the `RegexPatternSet` .

You can't change `Name` after you create a `RegexPatternSet` .

Specifies the regular expression (regex) patterns that you want AWS WAF to search for, such as `B[a@]dB[o0]t` .

regexPatternStrings

> This is *AWS WAF Classic* documentation.

For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

A combination of `ByteMatchSet` , `IPSet` , and/or `SqlInjectionMatchSet` objects that identify the web requests that you want to allow, block, or count. For example, you might create a `Rule` that includes the following predicates:

- An `IPSet` that causes AWS WAF to search for web requests that originate from the IP address `192.0.2.44`
- A `ByteMatchSet` that causes AWS WAF to search for web requests for which the value of the `User-Agent` header is `BadBot` .

To match the settings in this `Rule` , a request must originate from `192.0.2.44` AND include a `User-Agent` header for which the value is `BadBot` .

CfnRule

A name for the metrics for this `Rule` .

The name can contain only alphanumeric characters (A-Z, a-z, 0-9), with maximum length 128 and minimum length one. It can't contain whitespace or metric names reserved for AWS WAF, including "All" and "Default_Action." You can't change `MetricName` after you create the `Rule` .

The friendly name or description for the `Rule` .

You can't change the name of a `Rule` after you create it.

The `Predicates` object contains one `Predicate` element for each `ByteMatchSet` , `IPSet` , or `SqlInjectionMatchSet` object that you want to include in a `Rule` .

predicates

> AWS WAF Classic support will end on September 30, 2025.

>
> This is *AWS WAF Classic* documentation. For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

A complex type that contains `SizeConstraint` objects, which specify the parts of web requests that you want AWS WAF to inspect the size of. If a `SizeConstraintSet` contains more than one `SizeConstraint` object, a request only needs to match one constraint to be considered a match.

CfnSizeConstraintSet

The name, if any, of the `SizeConstraintSet` .

The size constraint and the part of the web request to check.

sizeConstraints

> AWS WAF Classic support will end on September 30, 2025.

>
> This is *AWS WAF Classic* documentation. For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

A complex type that contains `SqlInjectionMatchTuple` objects, which specify the parts of web requests that you want AWS WAF to inspect for snippets of malicious SQL code and, if you want AWS WAF to inspect a header, the name of the header. If a `SqlInjectionMatchSet` contains more than one `SqlInjectionMatchTuple` object, a request needs to include snippets of SQL code in only one of the specified parts of the request to be considered a match.

CfnSqlInjectionMatchSet

The name, if any, of the `SqlInjectionMatchSet` .

Specifies the parts of web requests that you want to inspect for snippets of malicious SQL code.

sqlInjectionMatchTuples

> This is *AWS WAF Classic* documentation.

For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

Contains the `Rules` that identify the requests that you want to allow, block, or count. In a `WebACL` , you also specify a default action ( `ALLOW` or `BLOCK` ), and the action for each `Rule` that you add to a `WebACL` , for example, block requests from specified IP addresses or block requests from specified referrers. If you add more than one `Rule` to a `WebACL` , a request needs to match only one of the specifications to be allowed, blocked, or counted.

To identify the requests that you want AWS WAF to filter, you associate the `WebACL` with an API Gateway API or an Application Load Balancer.

CfnWebACL

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

The action is specified by the `WafAction` object.

defaultAction

A name for the metrics for this `WebACL` .

The name can contain only alphanumeric characters (A-Z, a-z, 0-9), with maximum length 128 and minimum length one. It can't contain whitespace or metric names reserved for AWS WAF, including "All" and "Default_Action." You can't change `MetricName` after you create the `WebACL` .

A friendly name or description of the `WebACL` .

You can't change the name of a `WebACL` after you create it.

An array that contains the action for each `Rule` in a `WebACL` , the priority of the `Rule` , and the ID of the `Rule` .

rules

> This is *AWS WAF Classic* documentation.

For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

The AWS::WAFRegional::WebACLAssociation resource associates an AWS WAF Regional web access control group (ACL) with a resource.

CfnWebACLAssociation

The Amazon Resource Name (ARN) of the resource to protect with the web ACL.

resourceArn

A unique identifier (ID) for the web ACL.

webAclId

> AWS WAF Classic support will end on September 30, 2025.

>
> This is *AWS WAF Classic* documentation. For more information, see [AWS WAF Classic](https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html) in the developer guide.
>
> *For the latest version of AWS WAF* , use the AWS WAF V2 API and see the [AWS WAF Developer Guide](https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html) . With the latest version, AWS WAF has a single set of endpoints for regional and global use.

A complex type that contains `XssMatchTuple` objects, which specify the parts of web requests that you want AWS WAF to inspect for cross-site scripting attacks and, if you want AWS WAF to inspect a header, the name of the header. If a `XssMatchSet` contains more than one `XssMatchTuple` object, a request needs to include cross-site scripting attacks in only one of the specified parts of the request to be considered a match.

CfnXssMatchSet

Specifies the parts of web requests that you want to inspect for cross-site scripting attacks.

AWS wafregional

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