WAF Global WebAcl Rules Should Not Be Empty

Using Console

Using CLI

To remediate the misconfiguration of empty WAF Global Rules in AWS Cloud Watch using AWS CLI, you can follow these steps:

List the current WAF Global Rules in AWS Cloud Watch using the following AWS CLI command:

aws wafv2 list-web-acls --scope REGIONAL

Identify the Web ACL that has empty global rules.
Update the Web ACL by adding appropriate global rules. You can create a new global rule or update existing ones using the AWS CLI command. For example, to create a new global rule, you can use the following command:

aws wafv2 create-rule-group --name "MyGlobalRule" --scope REGIONAL --capacity 100 --rules file://global_rules.json

Make sure to replace “MyGlobalRule” with the desired name for the rule group and provide the rule definitions in the JSON file “global_rules.json”.

Associate the newly created global rule with the Web ACL using the following AWS CLI command:

aws wafv2 associate-web-acl --web-acl-arn <web_acl_arn> --web-acl-name <web_acl_name> --scope REGIONAL

Replace <web_acl_arn> and <web_acl_name> with the ARN and name of the Web ACL that needs to be updated.

Verify that the global rules are no longer empty by listing the Web ACLs again using the command in step 1.

By following these steps, you can successfully remediate the misconfiguration of empty WAF Global Rules in AWS Cloud Watch using AWS CLI.

Using Python

To remediate the misconfiguration of empty WAF Global Rules in AWS CloudWatch using Python, you can follow these steps:

Install Boto3: Make sure you have Boto3 installed. You can install it using pip:
```
pip install boto3
```
Set Up Boto3 Credentials: Ensure that you have set up your AWS credentials for Boto3 to access your AWS account. You can set up your credentials using AWS CLI or environment variables.
Write Python Code: Use the following Python code to associate a Global WebACL with a WAF:

import boto3

def associate_global_webacl_to_waf(web_acl_arn, waf_name):
    # Initialize the WAF client
    wafv2_client = boto3.client('wafv2')

    # Get the ARN of the resource associated with the WAF
    waf_resource_response = wafv2_client.get_web_acl(
        Name=waf_name
    )
    waf_resource_arn = waf_resource_response['WebACL']['ARN']

    # Associate the Global WebACL with the WAF
    response = wafv2_client.associate_web_acl(
        WebACLArn=web_acl_arn,
        ResourceArn=waf_resource_arn
    )

    print("Global WebACL associated with WAF successfully.")

def main():
    # Specify the ARN of the Global WebACL
    web_acl_arn = 'arn:aws:wafv2:us-west-2:123456789012:global/webacl/ExampleGlobalWebACL'

    # Specify the name of the WAF to associate with
    waf_name = 'ExampleWAF'

    # Associate Global WebACL with WAF
    associate_global_webacl_to_waf(web_acl_arn, waf_name)

if __name__ == "__main__":
    main()

Replace 'arn:aws:wafv2:us-west-2:123456789012:global/webacl/ExampleGlobalWebACL' with the ARN of your Global WebACL, and 'ExampleWAF' with the name of the WAF you want to associate with.

Run the Script: Execute the Python script. Upon successful execution, the Global WebACL will be associated with the specified WAF.

This script will use Boto3 to call the associate_web_acl method of the WAFv2 client, passing in the ARNs of the Global WebACL and the WAF resource to perform the association.

AWS Introduction

AWS Pricing

AWS Threats

AWS Misconfigurations

WAF Global WebAcl Rules Should Not Be Empty

More Info:

Risk Level

Address

Compliance Standards

Triage and Remediation

Remediation

AWS Introduction

AWS Pricing

AWS Threats

AWS Misconfigurations

​More Info:

​Risk Level

​Address

​Compliance Standards

​Triage and Remediation