C-0095 - Ensure that the controller manager pod specification file ownership is set to root:root

Prerequisites

Run Kubescape with host sensor (see here)

Framework

cis-v1.23-t1.0.1

Severity

Medium

Description of the the issue

The controller manager pod specification file controls various parameters that set the behavior of various components of the master node. You should set its file ownership to maintain the integrity of the file. The file should be owned by root:root.

Related resources

What does this control test

Ensure that the controller manager pod specification file ownership is set to root:root.

How to check it manually

Run the below command (based on the file location on your system) on the Control Plane node. For example,

stat -c %U:%G /etc/kubernetes/manifests/kube-controller-manager.yaml

Verify that the ownership is set to root:root.

Remediation

Run the below command (based on the file location on your system) on the Control Plane node. For example,

chown root:root /etc/kubernetes/manifests/kube-controller-manager.yaml

Impact Statement

None

Default Value

By default, kube-controller-manager.yaml file ownership is set to root:root.

Example

No example