Menu
The review-first prompt is selected by default. You can switch to a direct command or download a local copy.
Read SKILL.md and any companion files shown by SkillsMP before deciding whether to install.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
A direct command skips the review prompt. Inspect the source before running it.
npx skills add https://github.com/CyberStrikeus/CyberStrike --skill cis-ubuntu2004-v300-2-3-3-2The command stays on one line. Scroll horizontally to inspect it before copying.
Prefer a local copy? Download the files currently available to SkillsMP.
macOS post-exploitation for credential harvesting, DTrace monitoring, TCC bypass, and stealth operations via native tools
Windows userland post-exploitation for credential harvesting, monitoring, AMSI/ETW bypass, and stealth operations
Kubernetes post-exploitation for container escape, secret extraction, RBAC abuse, and cluster persistence
Based on SOC occupation classification
Showing SKILL.md
| name | cis-ubuntu2004-v300-2-3-3-2 |
| description | Ensure chrony is running as user _chrony |
| category | cis-networking |
| version | 3.0.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","linux","ubuntu-20.04","time-sync","chrony"] |
| cis_id | 2.3.3.2 |
| cis_benchmark | CIS Ubuntu Linux 20.04 LTS Benchmark v3.0.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
The chrony package is installed with a dedicated user account _chrony. This account is granted the access required by the chronyd service
The chronyd service should run with only the required privilidges
# ps -ef | awk '(/[c]hronyd/ && $1!="_chrony") { print $1 }'
Nothing should be returned
Add or edit the user line to /etc/chrony/chrony.conf or a file ending in .conf in /etc/chrony/conf.d/:
user _chrony
- OR -
If another time synchronization service is in use on the system, run the following command to remove chrony from the system:
# apt purge chrony
# apt autoremove chrony
user _chrony
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 0.0 Explicitly Not Mapped Explicitly Not Mapped | |||
| v7 | 0.0 Explicitly Not Mapped Explicitly Not Mapped |
| Techniques / Sub-techniques | Tactics | Mitigations |
|---|---|---|
| T1070, T1070.002, T1562, T1562.001 | TA0002 | M1022 |