InformationEnsure that Kubernetes PKI certificate files have permissions of 600 or more restrictive.
Kubernetes makes use of a number of certificate files as part of the operation of its components. The permissions on these files should be set to 600 or more restrictive to protect their integrity.
SolutionRun the below command (based on the file location on your system) on the Control Plane node. For example,
chmod -R 600 /etc/kubernetes/pki/*.crt
By default, the certificates used by Kubernetes are set to have permissions of 644