cis-ocp-v160-1-1-18

name	cis-ocp-v160-1.1.18
description	Ensure that the Controller Manager kubeconfig file ownership is set to root:root (Manual)
category	cis-openshift
version	1.6.0
author	cyberstrike-official
tags	["cis","openshift","kubernetes","redhat","control-plane","master-node-config-files","controller-manager","kubeconfig","file-ownership"]
cis_id	1.1.18
cis_benchmark	CIS Red Hat OpenShift Container Platform Benchmark v1.6.0
tech_stack	["kubernetes","openshift","redhat"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

CIS Red Hat OpenShift Container Platform Benchmark v1.6.0 - Control 1.1.18

Profile Applicability

• Level: 1

Description

Ensure that the kubeconfig file ownership is set to root:root.

Rationale

You should set the kubeconfig 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.

for i in $(oc get pods -n openshift-kube-controller-manager -l app=kube-controller-manager -oname)
 do
  oc exec -n openshift-kube-controller-manager $i -- \
  stat -c %U:%G /etc/kubernetes/static-pod-resources/configmaps/controller-manager-kubeconfig/kubeconfig
 done

Verify that the ownership is set to root:root.

Remediation

No remediation required; file permissions are managed by the operator.

Default Value

By default, the Controller Manager kubeconfig file ownership is set to root:root.

References

1. https://docs.openshift.com/container-platform/4.5/operators/operator-reference.html#kube-controller-manager-operator_red-hat-operators
2. https://docs.openshift.com/container-platform/4.5/operators/operator-reference.html#cluster-openshift-controller-manager-operator_red-hat-operators
3. https://kubernetes.io/docs/reference/command-line-tools-reference/kube-controller-manager/

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	5.4 Restrict Administrator Privileges to Dedicated Administrator Accounts