cis-ocp-v170-1-1-14

name	cis-ocp-v170-1.1.14
description	Ensure that the kubeconfig file ownership is set to root:root (Manual)
category	cis-openshift
version	1.7.0
author	cyberstrike-official
tags	["cis","openshift","kubernetes","redhat","control-plane","master-node","config-files"]
cis_id	1.1.14
cis_benchmark	CIS Red Hat OpenShift Container Platform Benchmark v1.7.0
tech_stack	["kubernetes","openshift","redhat"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

CIS Red Hat OpenShift Container Platform Benchmark v1.7.0 - Control 1.1.14

Profile Applicability

• Level: 1

Description

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

Rationale

The kubeconfig file contains the admin credentials for the cluster. 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

In OpenShift 4 the admin config file is stored in /etc/kubernetes/kubeconfig with ownership root:root.

Run the following command.

for i in $(oc get nodes  -o name)
 do
  echo $i
  oc debug $i --  <<EOF
       chroot /host
       stat -c %U:%G  /etc/kubernetes/kubeconfig
EOF
 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, in OpenShift 4, kubeconfig file ownership is set to root:root.

References

1. https://docs.openshift.com/container-platform/latest/cli_reference/openshift_cli/administrator-cli-commands.html
2. https://kubernetes.io/docs/reference/setup-tools/kubeadm/

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	5.4 Restrict Administrator Privileges to Dedicated Administrator Accounts	*	*	*
v7	4.3 Ensure the Use of Dedicated Administrative Accounts	*	*	*

MITRE ATT&CK Mappings