Cis AWS Database 5.7

5.7 Ensure Security Configurations are Reviewed Regularly

Description

Regularly updating and reviewing the security configuration of your Amazon ElastiCache clusters helps ensure that your clusters are protected against potential vulnerabilities and aligned with your security requirements.

Rationale

This ensures that the clusters are being regularly updated and protected from any potential vulnerabilities as well as meeting the security requirements.

Impact

Updating the system and being updated with security configurations keeps everything secure and prevents it from an attack.

Audit Procedure

Using AWS Console

1. Sign in to the AWS Management Console

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

2. Open the ElastiCache Console

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

3. Select the ElastiCache Cluster

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

4. Review IAM Policies

   • Navigate to the Configuration tab on the cluster details page.
   • Click on the IAM Access tab.
   • Review the IAM policies associated with the ElastiCache cluster and its resources.
   • Ensure that the IAM policies provide the least privileged access, granting only the necessary permissions to users and roles.
   • Update the IAM policies as required based on changes in access requirements or security best practices.

5. Review Security Groups

   • Navigate to the Configuration tab on the cluster details page.
   • Click on the Security Groups tab.
   • Review the security groups associated with the ElastiCache cluster.
   • Ensure that the inbound and outbound rules of the security groups are configured correctly and restrict access to necessary ports and IP ranges.
   • Update the security group rules as needed to align with your security requirements.

6. Review Encryption Settings

   • Navigate to the Configuration tab on the cluster details page.
   • Click on the Encryption at Rest tab.
   • Verify the encryption settings for the ElastiCache cluster.
   • Ensure that encryption at rest is enabled and using the appropriate encryption type (default AWS-managed key or customer-managed key).
   • Update the encryption settings if necessary to comply with your security policies.

7. Review Network Security

   • Navigate to the Configuration tab on the cluster details page.
   • Click on the Network & Security tab.
   • Review the VPC, subnets, security groups, and network ACLs associated with the ElastiCache cluster.
   • Ensure that the VPC and subnet configurations align with your security requirements.
   • Update the network security settings as needed to maintain a secure network architecture.

8. Review Access Control

   • Navigate to the Configuration tab on the cluster details page.
   • Click on the Security tab.
   • Review the authentication and access control settings for the ElastiCache cluster.
   • Ensure that the authentication method (no password, transit encryption, or encryption in transit) meets your security standards.
   • Update the access control settings as required to align with your security policies.

9. Regularly Monitor Security Bulletins

   • Stay updated with AWS security bulletins, advisories, and best practices.
   • Regularly review security-related announcements from AWS.
   • Take necessary actions based on security recommendations, such as applying patches or configuration changes.

Expected Result

All ElastiCache security configurations (IAM policies, security groups, encryption settings, network security, access control) are regularly reviewed and aligned with security requirements.

Remediation

Using AWS Console

Follow the same steps as the audit procedure to review and update security configurations for ElastiCache clusters on a regular schedule.

Default Value

N/A - This is a procedural control that requires regular manual review.

References

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

CIS Controls

Profile

Level 1 | Manual