AWS CloudFormation
User Guide (Version )

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AWS::WAF::SqlInjectionMatchSet

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.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{ "Type" : "AWS::WAF::SqlInjectionMatchSet", "Properties" : { "Name" : String, "SqlInjectionMatchTuples" : [ SqlInjectionMatchTuple, ... ] } }

YAML

Type: AWS::WAF::SqlInjectionMatchSet Properties: Name: String SqlInjectionMatchTuples: - SqlInjectionMatchTuple

Properties

Name

The name, if any, of the SqlInjectionMatchSet.

Required: Yes

Type: String

Minimum: 1

Maximum: 128

Update requires: Replacement

SqlInjectionMatchTuples

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

Required: No

Type: List of SqlInjectionMatchTuple

Update requires: No interruption

Return Values

Ref

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the resource physical ID, such as 1234a1a-a1b1-12a1-abcd-a123b123456.

For more information about using the Ref function, see Ref.

Examples

Find SQL Injections

The following example looks for snippets of SQL code in the query string of an HTTP request.

JSON

"SqlInjDetection": { "Type": "AWS::WAF::SqlInjectionMatchSet", "Properties": { "Name": "Find SQL injections in the query string", "SqlInjectionMatchTuples": [ { "FieldToMatch" : { "Type": "QUERY_STRING" }, "TextTransformation" : "URL_DECODE" } ] } }

YAML

SqlInjDetection: Type: "AWS::WAF::SqlInjectionMatchSet" Properties: Name: "Find SQL injections in the query string" SqlInjectionMatchTuples: - FieldToMatch: Type: "QUERY_STRING" TextTransformation: "URL_DECODE"

Associate a SQL Injection Match Set with a Web ACL Rule

The following example associates the SqlInjDetection match set with a web access control list (ACL) rule.

JSON

"SqlInjRule" : { "Type": "AWS::WAF::Rule", "Properties": { "Name": "SqlInjRule", "MetricName" : "SqlInjRule", "Predicates": [ { "DataId" : { "Ref" : "SqlInjDetection" }, "Negated" : false, "Type" : "SqlInjectionMatch" } ] } }

YAML

SqlInjRule: Type: "AWS::WAF::Rule" Properties: Name: "SqlInjRule" MetricName: "SqlInjRule" Predicates: - DataId: Ref: "SqlInjDetection" Negated: false Type: "SqlInjectionMatch"

Create a Web ACL

The following example associates the SqlInjRule rule with a web ACL. The web ACL allows all requests except for ones with SQL code in the query string of a request.

JSON

"MyWebACL": { "Type": "AWS::WAF::WebACL", "Properties": { "Name": "Web ACL to block SQL injection in the query string", "DefaultAction": { "Type": "ALLOW" }, "MetricName" : "SqlInjWebACL", "Rules": [ { "Action" : { "Type" : "BLOCK" }, "Priority" : 1, "RuleId" : { "Ref" : "SqlInjRule" } } ] } }

YAML

MyWebACL: Type: "AWS::WAF::WebACL" Properties: Name: "Web ACL to block SQL injection in the query string" DefaultAction: Type: "ALLOW" MetricName: "SqlInjWebACL" Rules: - Action: Type: "BLOCK" Priority: 1 RuleId: Ref: "SqlInjRule"