Ensure that the kubelet uses certificates to authenticate

HighLevel 1Manual reviewopenshift

Description

Enable certificate based kubelet authentication. The benchmark marks this recommendation Manual.

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

OpenShift does not use the --kubelet-client-certificate or the kubelet-client-key arguments. OpenShift utilizes X.509 certificates for authentication of the control-plane components. OpenShift configures the API server to use an internal certificate authority (CA) to validate the user certificate sent during TLS negotiation. If the CA validation of the certificate is successful, the request is authenticated and user information is derived from the certificate subject fields.

How it is fixed

Fix method: Guidance or infrastructure patch

No remediation is required. OpenShift platform components use X.509 certificates for authentication. OpenShift manages the CAs and certificates for platform components. This is not configurable.

Properties

Operating systems: Any
Tags: openshiftapi-serverkubelet
Reference: CIS Red Hat OpenShift Container Platform Benchmark v2.0.0 - 1.2.3 Ensure that the kubelet uses certificates to authenticate