Rule: S3 Buckets should enforce SSL

Rule Description:

Troubleshooting Steps (if applicable):

2. 1.
   Ensure that the S3 bucket is properly configured to accept SSL requests.
4. 2.
   Verify that the SSL certificate used for the S3 bucket is valid and up to date.
6. 3.
   Check if the S3 bucket policy or bucket ACL settings are correctly configured to enforce SSL.
8. 4.
   Verify that the client applications accessing the S3 bucket are properly configured to use SSL/TLS when communicating with the bucket.

Necessary Codes/Configuration (if applicable):

For Bucket Policy:

{
  "Version":"2012-10-17",
  "Statement":[{
	"Sid":"RequireSSLOnly",
	"Effect":"Deny",
	"Principal":"*",
	"Action":"s3:*",
	"Resource":"arn:aws:s3:::your-bucket-name",
	"Condition":{
		"Bool":{
			"aws:SecureTransport":"false"
		}
	}
  }]
}

For Bucket ACL:

2. 1.
   Go to the S3 Management Console.
4. 2.
   Select the desired bucket.
6. 3.
   Click on the "Permissions" tab.
8. 4.
   Under "Access for other AWS accounts" or "All public access" (depending on your bucket configuration), click on "Edit".
10. 5.
    Deny the permissions to "Everyone" to "List" and "Write" unless the request is made over SSL.
12. 6.
    Save the ACL settings.

Remediation Steps:

2. 1.
   Access the AWS Management Console.
4. 2.
   Go to the S3 service.
6. 3.
   Select the bucket(s) you want to enforce SSL for.
8. 4.
   Update the bucket policy or bucket ACL to deny access if the request is not made over SSL.
10. 5.
    Save the changes.
12. 6.
    Verify that the SSL enforcement is working by attempting to access the bucket without SSL, which should result in an access denial.
14. 7.
    Ensure that all relevant client applications or services are configured to use SSL/TLS when communicating with the S3 bucket.
16. 8.
    Test the access to the S3 bucket using SSL/TLS-enabled connections to ensure successful and secure communication.