Bot Control example: Use two statements to limit the use of the targeted inspection level - Amazon WAF, Amazon Firewall Manager, and Amazon Shield Advanced
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Bot Control example: Use two statements to limit the use of the targeted inspection level

As a cost optimization, you can use two Amazon WAF Bot Control managed rule group statements in your web ACL, with separate inspection levels and scoping. For instance, you could scope the targeted inspection level statement only to more sensitive application endpoints.

The two statements in the following example have mutually exclusive scoping. Without this configuration, a request could result in two billed evaluations.

Note

Multiple statements referencing AWSManagedRulesBotControlRuleSet are not supported in the visual editor in the console. Instead, use the JSON editor.

{
  "Name": "Bot-WebACL",
  "Id": "...",
  "ARN": "...",
  "DefaultAction": {
    "Allow": {}
  },
  "Description": "Bot-WebACL",
  "Rules": [
      {
        ...
      },
      {
       "Name": "AWS-AWSBotControl-Common",
       "Priority": 5,
       "Statement": {
          "ManagedRuleGroupStatement": {
             "VendorName": "AWS",
             "Name": "AWSManagedRulesBotControlRuleSet",
             "ManagedRuleGroupConfigs": [
               {
                 "AWSManagedRulesBotControlRuleSet": {
                   "InspectionLevel": "COMMON"
                 }
               }
             ],
             "RuleActionOverrides": [],
             "ExcludedRules": []
          },
          "VisibilityConfig": {
             "SampledRequestsEnabled": true,
             "CloudWatchMetricsEnabled": true,
             "MetricName": "AWS-AWSBotControl-Common"
           },
           "ScopeDownStatement": {
              "NotStatement": {
                "Statement": {
                  "ByteMatchStatement": {
                    "FieldToMatch": {
                      "UriPath": {}
                    },
                    "PositionalConstraint": "STARTS_WITH",
                    "SearchString": "/sensitive-endpoint",
                    "TextTransformations": [
                      {
                        "Type": "NONE",
                        "Priority": 0
                      }
                    ]
                  }
                }
              }
            }
        }
      },
      {
       "Name": "AWS-AWSBotControl-Targeted",
       "Priority": 6,
       "Statement": {
          "ManagedRuleGroupStatement": {
             "VendorName": "AWS",
             "Name": "AWSManagedRulesBotControlRuleSet",
             "ManagedRuleGroupConfigs": [
               {
                 "AWSManagedRulesBotControlRuleSet": {
                   "InspectionLevel": "TARGETED",
                   "EnableMachineLearning": true
                 }
               }
             ],
             "RuleActionOverrides": [],
             "ExcludedRules": []
          },
          "VisibilityConfig": {
             "SampledRequestsEnabled": true,
             "CloudWatchMetricsEnabled": true,
             "MetricName": "AWS-AWSBotControl-Targeted"
           },
           "ScopeDownStatement": {
              "Statement": {
                "ByteMatchStatement": {
                  "FieldToMatch": {
                    "UriPath": {}
                  },
                  "PositionalConstraint": "STARTS_WITH",
                  "SearchString": "/sensitive-endpoint",
                  "TextTransformations": [
                    {
                      "Type": "NONE",
                      "Priority": 0
                    }
                  ]
                }
              }
            }
        }
      }
    ],
    "VisibilityConfig": {
      ...
    },
    "Capacity": 1496,
    "ManagedByFirewallManager": false
}