Ensure the AWS Certificate Manager (ACM) has no unused certificates

Risk Level: Low
Cloud Entity: AWS Certificate Manager
CloudGuard Rule ID: D9.AWS.CRY.28
Covered by Spectral: No
Category: Security, Identity, & Compliance

GSL LOGIC

AcmCertificate should have inUseBy with ['%arn%']

REMEDIATION

From Portal
Following are the steps to delete unused certificates:

1. Open the ACM console at https://console.aws.amazon.com/acm/.
2. In the list of certificates, select the check box for an ACM certificate, then choose Delete.

Alternatively, you can associate/use the unused certificate to the resource which requires the certificate.

From Command Line
Use the delete-certificate command to delete a certificate, as shown in the following command:

aws acm delete-certificate --certificate-arn ARN

References

1. https://docs.aws.amazon.com/acm/latest/userguide/gs-acm-delete.html
2. https://awscli.amazonaws.com/v2/documentation/api/latest/reference/acm/delete-certificate.html

AWS Certificate Manager

AWS Certificate Manager is a service that lets you easily provision, manage, and deploy Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates.

Compliance Frameworks

• AWS CSA CCM v.4.0.1
• AWS CloudGuard Best Practices
• AWS CloudGuard Well Architected Framework
• AWS HITRUST
• AWS HITRUST v11.0.0
• AWS ITSG-33
• AWS MAS TRM Framework
• AWS MITRE ATT&CK Framework v10
• AWS MITRE ATT&CK Framework v11.3
• CloudGuard AWS All Rules Ruleset