Rule: SNS topics should be encrypted at rest
This rule ensures that SNS topics are securely encrypted when stored
| Rule | SNS topics should be encrypted at rest |
| Framework | NIST 800-53 Revision 5 |
| Severity | ✔ Medium |
Rule Description:
SNS (Simple Notification Service) is a messaging service provided by AWS (Amazon Web Services) that enables the sending and receiving of messages between software components in a distributed system. In order to align with NIST 800-53 Revision 5 security guidelines, it is recommended to encrypt SNS topics at rest.
Troubleshooting Steps:
- Verify if SNS encryption at rest is already enabled.
- Review the encryption settings for SNS topics.
- Check if the AWS Key Management Service (KMS) key is properly configured.
- Ensure the appropriate permissions are assigned to the AWS resources involved.
Necessary Codes:
There are no specific codes required for this rule/policy. However, some AWS CLI (Command Line Interface) commands may be useful for verifying and configuring encryption settings.
Step-by-Step Guide for Remediation:
- 1.
Verify SNS Encryption Settings:
- Open the AWS Management Console and navigate to the SNS service.
- Select the SNS topic that needs to be encrypted.
- Click on the "Encryption" tab to review the encryption settings.
- 2.
Enable Encryption for SNS Topic:
- If encryption is not already enabled, click on the "Edit" button next to the "Encryption" section.
- Select the desired encryption option (e.g., AWS Key Management Service (KMS)).
- Choose an existing KMS key or create a new one.
- Save the changes to enable encryption for the selected SNS topic.
- 3.
Review AWS KMS Key Configuration:
- Open the AWS Management Console and navigate to the AWS Key Management Service (KMS).
- Verify the configuration of the selected KMS key.
- Ensure the key is properly configured and follows the recommended security best practices.
- 4.
Validate Permissions:
- Check the IAM (Identity and Access Management) policies attached to the AWS resources involved in SNS.
- Confirm that appropriate permissions are granted to the SNS topic, KMS key, and other related resources.
- 5.
Testing and Monitoring:
- Send test messages through the SNS topic and monitor for any issues or errors.
- Enable CloudTrail logging to track any potential security events related to SNS topics.
- Regularly review logs and monitoring data to ensure the encryption at rest for SNS topics is functioning as expected.
Conclusion:
By implementing encryption at rest for SNS topics, you adhere to the NIST 800-53 Revision 5 security guidelines. This ensures that the data stored in SNS topics remains protected, reducing the risk of unauthorized access or data breaches. Regular monitoring and testing should be conducted to maintain the security integrity of your SNS topics.