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

CfnByteMatchSet

The name 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 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

The name 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.

If the `WebACL` is associated with an Amazon CloudFront distribution and the viewer did not use an HTTP proxy or a load balancer to send the request, this is the value of the c-ip field in the CloudFront access logs.

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 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

The name of 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` .

metricName

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. You also associate the `WebACL` with a Amazon CloudFront distribution to identify the requests that you want AWS WAF to filter. 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.

CfnWebACL

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

The action is specified by the `WafAction` object.

defaultAction

The name of 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

> 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 waf

L1 Constructs7

CfnByteMatchSet

CfnIPSet

CfnRule

CfnSizeConstraintSet

CfnSqlInjectionMatchSet

CfnWebACL

CfnXssMatchSet

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