# Cis Ocp Vm V100 6 3

> Ensure all CPU vulnerabilities are mitigated (Manual)

- Skill: `cyberstrikeus/cis-ocp-vm-v100-6-3` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ocp-vm-v100-6-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ocp-vm-v100-6-3/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-ocp-vm-v100-6-3

---


# CIS 6.3 — Ensure all CPU vulnerabilities are mitigated

## Profile Applicability

- Level 1

## Description

Ensure that all known CPU vulnerabilities are mitigated. This ensures that known attacks, such as Spectre, Meltdown, etc. either do not affect the node or are mitigated via software.

## Rationale

Vulnerability mitigation ensures that known attacks cannot be exploited.

## Impact

Impact analysis should be performed on a per-mitigation basis.

## Audit Procedure

View CPU mitigations:

```
$ ls /sys/devices/system/cpu/vulnerabilities
```

Output may resemble the following:

```
"Not affected"    CPU is not affected by the vulnerability
"Vulnerable"      CPU is affected and no mitigation in effect
"Mitigation: $M"  CPU is affected and mitigation $M is in effect
```

## Remediation

Add the appropriate kernel arguments to the MachineConfigPools of the workers nodes and reboot them. See Documentation Chapter 1.Customizing nodes | Red Hat Product Documentation

## Default Value

The cpu vulnerabilities file is not populated by default

## References

None listed in the PDF.

## CIS Controls

| Controls Version | Control                                            | IG 1 | IG 2 | IG 3 |
| ---------------- | -------------------------------------------------- | ---- | ---- | ---- |
| v8               | 7.4 Perform Automated Application Patch Management | Y    | Y    | Y    |

## MITRE ATT&CK Mappings

| Tactic               | Technique                                     |
| -------------------- | --------------------------------------------- |
| Privilege Escalation | T1068 - Exploitation for Privilege Escalation |
| Credential Access    | T1212 - Exploitation for Credential Access    |

## Profile

- Level 1 - OpenShift Virtualization