Rule: S3 Bucket Default Encryption Enabled with KMS
This rule ensures S3 buckets have default encryption enabled with KMS for enhanced security measures.
| Rule | S3 bucket default encryption should be enabled with KMS |
| Framework | HIPAA |
| Severity | ✔ Medium |
Rule Description:
According to the HIPAA regulations, all data stored in an S3 bucket should be encrypted by default. This rule ensures that the default encryption setting is enabled for the S3 bucket using the Key Management Service (KMS). By enabling default encryption with KMS, you ensure that all new objects uploaded to the bucket are automatically encrypted using KMS-managed keys.
Troubleshooting Steps:
If the default encryption with KMS is not enabled for an S3 bucket, follow these troubleshooting steps:
- 1.
Check the bucket's encryption settings: Verify if the bucket has default encryption enabled. You can check this by navigating to the S3 bucket in the AWS Management Console, selecting the "Properties" tab, and checking the "Default Encryption" section.
- 2.
Ensure the correct KMS key is selected: Confirm that the correct KMS key is selected for default encryption. Check the key ID associated with the default encryption and make sure it is set to a KMS key suitable for HIPAA compliance.
- 3.
Verify the IAM permissions: Ensure that the IAM user or role used for managing the S3 bucket has the necessary permissions to enable default encryption with KMS. The user or role should have access to the selected KMS key and the required IAM actions for S3 bucket management.
Necessary Codes:
There are no specific codes required for enabling default encryption with KMS for an S3 bucket, as it can be done through the AWS Management Console or AWS Command Line Interface (CLI).
Step-by-step Guide for Remediation:
To enable default encryption with KMS for an S3 bucket, follow these steps:
- 1.
Open the AWS Management Console and navigate to the S3 service.
- 2.
Select the desired bucket from the list of available buckets.
- 3.
Click on the "Properties" tab.
- 4.
In the "Default Encryption" section, click on the "Edit" button.
- 5.
Choose the "AWS Key Management Service (SSE-KMS)" option.
- 6.
Select the appropriate KMS key from the dropdown menu. Ensure that the selected key is suitable for HIPAA compliance.
- 7.
Click on the "Save" button to apply the changes.
Once the default encryption with KMS is enabled for the S3 bucket, all new objects uploaded to the bucket will be automatically encrypted using the selected KMS key.