Rule: Ensure SNS Topic Policy is Not Publicly Accessible

Rule Description:

Troubleshooting Steps:

2. 1.
   Confirm the SNS topic policy: Check the current SNS topic policy for CloudDefense to ensure it is not publicly accessible.
4. 2.
   Review the topic policy permissions: Identify if there are any overly permissive policies that allow public access.
6. 3.
   Identify the potential issues: If the policy allows public access, it could lead to unauthorized access or exposure of sensitive information.
8. 4.
   Review AWS Identity and Access Management (IAM) policies: Ensure that the appropriate IAM policies are in place to restrict access to the SNS topic policy.

Necessary Codes:

Remediation Steps:

2. 1.
   Open the Amazon SNS console.
4. 2.
   Navigate to the SNS topic policy for the CloudDefense service.
6. 3.
   Review the current policy and its permissions.
8. 4.
   Update the policy to restrict access and make it private. Remove any public access permissions if present.
10. 5.
    Save the changes to the policy.

Verification:

2. 1.
   Validate the updated SNS topic policy by reviewing the permissions.
4. 2.
   Ensure that the policy no longer allows public access.
6. 3.
   Confirm that the necessary access restrictions are in place to maintain the privacy and security of the SNS topic and its resources.
8. 4.
   Test the accessibility of the SNS topic from unauthorized accounts to verify the policy is correctly enforced.