Cis Ocp V190 4.1.6

CIS Red Hat OpenShift Container Platform Benchmark v1.9.0 - Control 4.1.6

Profile Applicability

• Level: 1

Description

Ensure that the kubelet.conf file ownership is set to root:root.

Rationale

The kubelet.conf file is the Kubernetes configuration file for the node, and controls various parameters that set the behavior and identity of the worker node. You should set its file ownership to maintain the integrity of the file. The file should be owned by root:root.

Impact

None.

Audit Procedure

Run the following command to view the user and group ownership of the kubelet.conf file:

for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
do
oc debug node/${node} -- chroot /host stat -c %U:%G /etc/kubernetes/kubelet.conf
done

OR

for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
do
oc debug node/${node} -- chroot /host stat -c %U:%G /host/etc/kubernetes/kubelet.conf
done

Verify that the ownership is set to root:root.

Remediation

None.

Default Value

By default, kubelet.conf file ownership is set to root:root.

References

1. https://docs.openshift.com/container-platform/latest/architecture/control-plane.html#understanding-machine-config-operator_control-plane
2. https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/

CIS Controls

MITRE ATT&CK Mappings

Profile

Level 1 (Automated)