Rule: S3 Bucket Cross-Region Replication Should be Enabled
Ensure that S3 bucket cross-region replication is enabled to maintain critical compliance standards.
| Rule | S3 bucket cross-region replication should be enabled |
| Framework | NIST Cybersecurity Framework (CSF) v1.1 |
| Severity | ✔ Critical |
Rule Description:
The NIST Cybersecurity Framework (CSF) v1 recommends enabling cross-region replication for S3 buckets. This ensures that the data stored in the buckets is automatically replicated to a secondary bucket in a different region. By implementing cross-region replication, organizations can enhance their data resilience and minimize the risk of data loss or unavailability in case of a regional disaster or localized service disruption.
Troubleshooting Steps (if applicable):
- 1.Verify that you have the appropriate permissions to enable cross-region replication for S3 buckets.
- 2.Ensure that the source and destination buckets are in different regions.
- 3.Check if the S3 bucket versioning is enabled for both the source and destination buckets.
- 4.Confirm that the S3 bucket policies and permissions are correctly configured to allow cross-region replication.
Necessary Codes (if applicable):
No specific codes are required for this rule.
Step-by-Step Guide for Remediation:
Enable Cross-Region Replication for S3 Bucket
- 1.Log in to the AWS Management Console (https://console.aws.amazon.com/) using your credentials.
- 2.Navigate to the Amazon S3 service.
- 3.Locate the source bucket for which you want to enable cross-region replication.
- 4.Select the bucket and click on the "Properties" tab.
- 5.Scroll down to the "Replication" section and click on the "Edit" button.
- 6.Select "Enable" for Cross-Region Replication.
- 7.Click on "Add Rule" and provide the following details:
- Rule Name: Enter a descriptive name for the replication rule.
- Source: Choose the source bucket from the dropdown menu.
- Destination: Select the destination bucket in a different region.
- IAM Role: Select an IAM role that has permissions to replicate objects from the source to destination buckets.
- 8.Configure additional settings as per your requirements, such as replication frequency, encryption, and prefix filters.
- 9.Click "Save" to enable cross-region replication for the selected bucket.
Conclusion:
Enabling cross-region replication for S3 buckets aligns with the recommendations of the NIST Cybersecurity Framework (CSF) v1. It enhances the resilience of your data and ensures its availability even in the face of regional disasters or localized service disruptions. Following the provided step-by-step guide allows you to easily configure this feature for your S3 buckets.