STIGQter: STIG Summary: Kubernetes Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 13 Apr 2021:

Kubernetes Kubelet must enable kernel protection.

DISA Rule

SV-242434r712658_rule

Vulnerability Number

V-242434

Group Title

SRG-APP-000233-CTR-000585

Rule Version

CNTR-K8-001620

Severity

CAT I

CCI(s)

• CCI-001084 - The information system isolates security functions from nonsecurity functions.

Weight

10

Fix Recommendation

Edit the Kubernetes Kuberlet file in the /etc/sysconfig directory on the Kubernetes Master Node. Set the argument "--protect-kernel-defaults" to "true".

Reset Kubelet service using the following command:

service kubelet restart

Check Contents

Change to the /etc/sysconfig/ directory on the Kubernetes Master Node. Run the command:

grep -i protect-kernel-defaults kubelet

If the setting "protect-kernel-defaults" is set to false or not set in the Kubernetes Kubelet, this is a finding.

Vulnerability Number

V-242434

Documentable

False

Rule Version

CNTR-K8-001620

Severity Override Guidance

Change to the /etc/sysconfig/ directory on the Kubernetes Master Node. Run the command:

grep -i protect-kernel-defaults kubelet

If the setting "protect-kernel-defaults" is set to false or not set in the Kubernetes Kubelet, this is a finding.

Check Content Reference

M

Target Key

5376

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