cis-ocp-v170-4.1.5

DevOps & Security

Ensure that the --kubeconfig kubelet.conf file permissions are set to 644 or more restrictive (Automated)

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/CIS_benchmarks/Server_Software/Kubernetes/CIS_Red_Hat_OpenShift_Container_Platform_Benchmark_v1.7.0/cis-ocp-v170-4.1.5/SKILL.md

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CIS Red Hat OpenShift Container Platform Benchmark v1.7.0 - Control 4.1.5

Profile Applicability

Level: 1

Description

Ensure that the kubelet.conf file has permissions of 644 or more restrictive.

Rationale

The kubelet.conf file is the kubeconfig file for the node, and controls various parameters that set the behavior and identity of the worker node. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.

Impact

None

Audit Procedure

Run the following command to check the permissions of the kubelet.conf on each node:

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

Verify that the permissions are 644.

Remediation

None.

Default Value

By default, OpenShift sets the default permissions for the kubelet.conf to 644.

References

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	3.3 Configure Data Access Control Lists	*	*	*
v7	14.6 Protect Information through Access Control Lists	*	*	*

MITRE ATT&CK Mappings

Techniques / Sub-techniques	Tactics	Mitigations
T1083, T1222	TA0005, TA0007	M1022

Profile

Level 1 (Automated)