Ensure compliance by blocking S3 public access at the account level.
Rule | S3 public access should be blocked at account level |
Framework | CISA-cyber-essentials |
Severity | ✔ Medium |
Rule Description:
This rule ensures that public access to S3 buckets within an AWS account is blocked. It specifically targets accounts that need to comply with CISA Cyber Essentials guidelines for enhanced security. By implementing this rule, you prevent unauthorized access to data stored in S3 buckets and mitigate the risk of data breaches.
Troubleshooting Steps:
If you encounter any issues while implementing this rule, follow these troubleshooting steps:
Necessary Codes:
There are no specific codes required for implementing this rule. However, you can use AWS CLI or SDKs to automate the process of blocking public access for S3 buckets.
Step-by-Step Guide for Remediation:
Using AWS CLI:
Open the AWS CLI (Command Line Interface) on your local machine or use the AWS CLI within the AWS Management Console.
Run the following command to block public access for a specific S3 bucket:
aws s3api put-public-access-block --bucket <bucket-name> --public-access-block-configuration "BlockPublicAcls=true,IgnorePublicAcls=true,BlockPublicPolicy=true,RestrictPublicBuckets=true"
Replace
<bucket-name>
in the above command with the appropriate S3 bucket name. Repeat this command for each identified S3 bucket.Using AWS Management Console:
Conclusion:
By following the above steps, you have successfully implemented the rule to block public access to S3 buckets at the AWS account level for CISA Cyber Essentials compliance. Regularly review and monitor your S3 bucket configurations to ensure ongoing security and compliance.