Cis AWS Database 6.5

6.5 Ensure Security Configurations are Reviewed Regularly (Manual)

Description

This helps by removing or updating any IAM roles, security networks, encryption settings, audit logging, and authentication. By updating or removing a few things from these lists it helps tighten security and ensures that the users do not have excessive permissions.

Rationale

Regular review of security configurations ensures that the MemoryDB cluster maintains a strong security posture and adapts to changing requirements.

Impact

By regularly checking these settings in the database the user is preventing the database from a cyber threat.

Audit Procedure

Using AWS Console

1. Sign into the AWS Management Console

   • Sign into the AWS Management Console at https://console.aws.amazon.com/ with your AWS account credentials.

2. Open the Amazon MemoryDB Console

   • Navigate to the service using the Find Services search bar or by directly accessing the console at https://console.aws.amazon.com/memorydb/.

3. Select the Cluster

   • Choose the Amazon MemoryDB cluster for which you want to update and review the security configuration.
   • Click on the cluster name to access its details page.

4. Review IAM Roles and Permissions

   • In the cluster details page, navigate to the Security or Access Control section.
   • Review the IAM roles and permissions associated with the cluster.
   • Ensure that the IAM roles have appropriate permissions and follow the principle of least privilege.
   • Review the IAM policies and make any necessary updates to align with your security requirements.

5. Review Network Security

   • In the cluster details page, navigate to the Security or Network & Security section.
   • Review the Virtual Private Cloud (VPC), subnets, security groups, and network ACLs associated with the cluster.
   • Ensure that the VPC and subnet configurations align with your security requirements.
   • Review the security group rules and network ACL rules to ensure they restrict access to necessary ports, IP ranges, and protocols.
   • Make any necessary updates to tighten the network security settings.

6. Review Encryption Settings

   • In the cluster details page, navigate to the Security or Encryption section.
   • Review the encryption settings for the cluster.
   • Ensure that encryption at rest and in transit are enabled and the appropriate encryption options are chosen.
   • Review any customer-managed keys used for encryption and verify their configurations.

7. Review Authentication and Access Control

   • In the cluster details page, navigate to the Security or Access Control section.
   • Review the authentication options and access control policies in place for the cluster.
   • Ensure that the authentication mechanisms and access control policies align with your security requirements.
   • Make any necessary updates to adapt to changing access requirements or security policies.

8. Review Audit Logging

   • In the cluster details page, navigate to the Monitoring or Logging section.
   • Review the logging configuration for the cluster.
   • Ensure that the logs are captured and stored as expected.
   • Please review the log retention settings and verify that they comply with your retention policies.

9. Regularly Monitor Security Bulletins

   • Stay updated with AWS security bulletins, advisories, and best practices.
   • Monitor AWS security announcements and subscribe to relevant security notifications.
   • Regularly review and apply security patches, updates, and recommended configuration changes for Amazon MemoryDB.

Expected Result

All security configurations (IAM, network, encryption, authentication, logging) are reviewed and aligned with organizational security requirements.

Remediation

Using AWS Console

Follow the audit procedure steps to review and update all security configurations for each MemoryDB cluster on a regular schedule.

Default Value

There is no automatic security review mechanism. Organizations must establish their own review cadence.

References

1. https://aws.amazon.com/products/databases/

CIS Controls

Profile

Level 1 | Manual