The Kubernetes kubelet config must have file permissions set to 644 or more restrictive.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-242456SRG-APP-000516-CTR-001330CNTR-K8-003230SV-242456r961863_rule2025-02-202
Description
The Kubernetes kubelet agent registers nodes with the API server and performs health checks to containers within pods. If this file can be modified, the information system would be unaware of pod or container degradation.
ℹ️ Check
Review the permissions of the Kubernetes config.yaml by using the command: stat -c %a /var/lib/kubelet/config.yaml If any of the files are have permissions more permissive than "644", this is a finding.
✔️ Fix
Change the permissions of the config.yaml to "644" by executing the command: chmod 644 /var/lib/kubelet/config.yaml