# Cis Ubuntu1204 V110 8 1 7

> Record Events That Modify the System's Mandatory Access Controls

- Skill: `cyberstrikeus/cis-ubuntu1204-v110-8-1-7` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ubuntu1204-v110-8-1-7`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ubuntu1204-v110-8-1-7/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-ubuntu1204-v110-8-1-7

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# 8.1.7 Record Events That Modify the System's Mandatory Access Controls (Scored)

## Profile Applicability

- Level 2

## Description

Monitor SELinux mandatory access controls. The parameters below monitor any write access (potential additional, deletion or modification of files in the directory) or attribute changes to the `/etc/selinux/` directory.

## Rationale

Changes to files in this directory could indicate that an unauthorized user is attempting to modify access controls and change security contexts, leading to a compromise of the system.

## Audit Procedure

### Using Command Line

Perform the following to determine if events that modify the system's mandatory access controls are recorded:

```bash
grep MAC-policy /etc/audit/audit.rules
```

## Expected Result

```
-w /etc/selinux/ -p wa -k MAC-policy
```

## Remediation

### Using Command Line

Add the following lines to the `/etc/audit/audit.rules` file:

```bash
-w /etc/selinux/ -p wa -k MAC-policy
# Execute the following command to restart auditd
# pkill -P 1-HUP auditd
```

## Default Value

By default, mandatory access control modification events are not audited.

## References

- CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0

## Profile

Level 2 - Scored