Information
Ensure that the API server pod specification file has permissions of 644 or more restrictive.
Rationale:
The API server pod specification file controls various parameters that set the behavior of the API server. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.
Solution
Run the below command (based on the file location on your system) on the master node. For example,
chmod 644 /etc/kubernetes/manifests/kube-apiserver.yaml
Impact:
None
Default Value:
By default, the kube-apiserver.yaml file has permissions of 640.
References:
https://kubernetes.io/docs/admin/kube-apiserver/