SV-242405r960960: The Kubernetes manifests must be owned by root. | Kubernetes STIG SCAP Benchmark

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Assessment Title

Rule Text

The Kubernetes manifests must be owned by root.

Description

Discussion Text

The manifest files contain the runtime configuration of the API server, proxy, scheduler, controller, and etcd. If an attacker can gain access to these files, changes can be made to open vulnerabilities and bypass user authorizations inherit within Kubernetes with RBAC implemented.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-001499

References

DPMS Target Kubernetes DISA DPMS Target Kubernetes 5376

Checks

DISA STIG (Manual Reference)

On the Control Plane, change to the /etc/kubernetes/manifest directory. Run the command:
ls -l *

Each manifest file must be owned by root:root.

If any manifest file is not owned by root:root, this is a finding.

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

Assessment Script Powered by AISandbox-executed

A standalone Shell script to assess this control automatically. Review before running it in your environment.

Syntax-checked and actually executed in an isolated sandbox (not the real system this checks) — confirmed to run without errors.

#!/bin/sh
# OVAL Definition: oval:mil.disa.stig.kubernetes:def:242405

if [ ! -d "/etc/kubernetes/manifests" ]; then echo "PASS"; exit 0; fi
for file in /etc/kubernetes/manifests/*; do [ -f "$file" ] && [ "$(stat -c "%U:%G" "$file")" = "root:root" ] || { echo "FAIL"; exit 1; }; done; echo "PASS"; exit 0

Remediation

On the Control Plane, change to the /etc/kubernetes/manifest directory. Run the command:
chown root:root *

To verify the change took place, run the command:
ls -l *

All the manifest files should be owned by root:root.