# CIS Ubuntu 14.04 LTS - 1.2.2 Ensure GPG keys are configured

> Verify that GPG keys are configured for package manager to ensure package integrity

- Skill: `cyberstrikeus/cis-ubuntu-14-04-lts-1-2-2-ensure-gpg-keys-are-configured` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ubuntu-14-04-lts-1-2-2-ensure-gpg-keys-are-configured`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ubuntu-14-04-lts-1-2-2-ensure-gpg-keys-are-configured/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-1-2-2-ensure-gpg-keys-are-configured

---


# 1.2.2 Ensure GPG keys are configured (Not Scored)

## Profile Applicability

- Level 1 - Server
- Level 1 - Workstation

## Description

Most packages managers implement GPG key signing to verify package integrity during installation.

## Rationale

It is important to ensure that updates are obtained from a valid source to protect against spoofing that could lead to the inadvertent installation of malware on the system.

## Audit Procedure

Run the following command and verify GPG keys are configured correctly for your package manager:

```bash
apt-key list
```

## Expected Result

Verify that GPG keys are configured according to site policy.

## Remediation

Update your package manager GPG keys in accordance with site policy.

## Default Value

Not applicable. Configuration varies by site policy.

## References

- CIS Controls: 4.5 Use Automated Patch Management And Software Update Tools

## Profile

- Level 1 - Server
- Level 1 - Workstation