S3 Bucket Cross-Region Replication Rule
This rule ensures cross-region replication is enabled for S3 buckets.
| Rule | S3 bucket cross-region replication should be enabled |
| Framework | NIST 800-53 Revision 5 |
| Severity | ✔ Critical |
Rule Description
The rule requires that Amazon S3 bucket cross-region replication should be enabled in accordance with the NIST 800-53 Revision 5 security controls. Enabling cross-region replication ensures data redundancy and availability in case of regional failures or disasters.
Troubleshooting Steps
- 1.Ensure you have the necessary permissions to enable cross-region replication for S3 buckets.
- 2.Verify that the bucket you want to enable cross-region replication for is in the correct region and is in compliance with NIST 800-53 Revision 5 controls.
- 3.Make sure the destination bucket, in a different region, is correctly configured and accessible.
Necessary Codes
You can use the AWS Command Line Interface (CLI) or AWS SDKs to enable cross-region replication.
Step-by-Step Guide
- 1.
Open the AWS Management Console and navigate to the S3 service.
- 2.
Select the source bucket that you want to enable cross-region replication for.
- 3.
Click on the "Properties" tab for the selected bucket.
- 4.
Scroll down and click on "Replication".
- 5.
Click on "Add rule" to configure the replication rule.
- 6.
In the "Source" section, choose the source bucket and prefix for the objects you want to replicate.
- 7.
In the "Destination" section, select a destination bucket in a different region.
- 8.
Choose the storage class for replicated objects in the destination bucket.
- 9.
Configure other replication options as needed, such as filtering rules or time intervals.
- 10.
Click on "Save changes" to enable cross-region replication for the bucket.
CLI Command
If you prefer to use the AWS CLI, you can use the following command:
aws s3api put-bucket-replication --bucket source-bucket-name --replication-configuration file://replication-config.json
where
source-bucket-namereplication-config.jsonRemember to replace the values within
<angle brackets>Remediation Steps Summary
To ensure cross-region replication for an S3 bucket in compliance with NIST 800-53 Revision 5:
- 1.Use the AWS Management Console or AWS CLI to enable cross-region replication for the source bucket.
- 2.Configure the replication rule, specifying the source bucket, destination bucket, and other replication options as necessary.
- 3.Save the changes to enable cross-region replication for the bucket.
- 4.Verify the replication is functioning as expected by monitoring the replication metrics and reviewing the replication status in the S3 bucket console.
- 5.Regularly review and update the replication configuration as needed, ensuring ongoing compliance with NIST 800-53 Revision 5 controls.