Ensure that the certificate authorities file permissions are set to 644 or more restrictive

HighLevel 1Automatedopenshift

Description

Ensure that the certificate authorities file has permissions of 644 or more restrictive. Runs on each OpenShift node (for example from an oc debug node shell with chroot /host); SKIPs where the file is absent.

How it is checked

Audit method: Shell command

shell

set -f
f=""; for x in /etc/kubernetes/kubelet-ca.crt; do if [ -e "$x" ]; then f=$x; break; fi; done
[ -n "$f" ] || exit 1
p=$(stat -Lc %a "$f") || exit 1
if [ $((0$p & 0133)) -eq 0 ]; then echo compliant; else echo "noncompliant: $f mode $p"; fi

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Use chmod on kubelet-ca.crt config file and set permissions to 644

Properties

Operating systems: Any
Tags: openshiftworker-nodefile-permissions
Reference: CIS Red Hat OpenShift Container Platform Benchmark v2.0.0 - 4.1.7 Ensure that the certificate authorities file permissions are set to 644 or more restrictive

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target openshift