# CIS Ubuntu 14.04 LTS - 1.6.3 Ensure SELinux or AppArmor are installed

> Verify that either SELinux or AppArmor mandatory access control system is installed

- Skill: `cyberstrikeus/cis-ubuntu-14-04-lts-1-6-3-ensure-selinux-or-apparmor-are-in` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ubuntu-14-04-lts-1-6-3-ensure-selinux-or-apparmor-are-in`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ubuntu-14-04-lts-1-6-3-ensure-selinux-or-apparmor-are-in/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-ubuntu-14-04-lts-1-6-3-ensure-selinux-or-apparmor-are-in

---


# 1.6.3 Ensure SELinux or AppArmor are installed (Scored)

## Profile Applicability

- Level 2 - Server
- Level 2 - Workstation

## Description

SELinux and AppArmor provide Mandatory Access Controls.

## Rationale

Without a Mandatory Access Control system installed only the default Discretionary Access Control system will be available.

## Audit Procedure

Run the following commands and verify either SELinux or AppArmor is installed:

```bash
dpkg -s selinux
dpkg -s apparmor
```

## Expected Result

At least one of the packages (`selinux` or `apparmor`) should be installed with status `install ok installed`.

## Remediation

Run one of the following commands to install SELinux or apparmor:

```bash
apt-get install selinux
```

or

```bash
apt-get install apparmor
```

## Default Value

AppArmor is installed by default on Ubuntu systems.

## References

- CIS Controls: 14.4 Protect Information With Access Control Lists

## Profile

- Level 2 - Server
- Level 2 - Workstation