offensive-linux-privesc skillC
offensive-linux-privesc is agent-read markdown (skill) from snailsploit/claude-red: Comprehensive Linux privilege escalation methodology for offensive security engagements. Covers the full attack surface from a low-privilege shell to root: SUID/SGID binary abuse via GTFOBins, Linux capabilities exploitation (cap_setuid, cap_dac_override, cap_dac_read_search), sudo misconfigurations including NOPASSWD rules and Baron Samedit (CVE-2021-3156), cron job abuse through writable scripts, PATH hijacking, and wildcard injection with tar/rsync/chown. Includes writable /etc/passwd attacks.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Linux Privilege Escalation You have a low-privilege shell on a Linux target. Your objective is to escalate to root through systematic enumeration and exploitation of misconfigurations, vulnerable software, and kernel flaws. This skill provides a structured methodology that moves from passive reconnaissance through increasingly aggressive techniques, prioritizing reliability and stealth. Every engagement starts with situational awareness. Know what you have, what the system exposes, and what defenders can see. Chain low-severity findings into high-impact escalation paths. ## Quick Workflow 1. Run automated enumeration (LinPEAS, linux-exploit-suggester) to surface quick wins. 2. Check sudo permissions, SUID/SGID binaries, and capabilities first -- these are the highest-probability vectors. 3. Enumerate cron jobs, writable scripts, and PATH ordering for hijack opportunities. 4. Inspect file permissions on /etc/passwd, /etc/shadow, service configs, and SSH keys. 5. Check for NFS shares with no_root_squash and Docker group membership. 6. Fingerprint the kernel version and search for applicable kernel exploits as a last resort. …
Read the whole file at its exact version.
How to install
mdr add snailsploit/claude-red/offensive-linux-privesc@git:20260825.1885f44mdr add snailsploit/claude-red/offensive-linux-privesc@sha256:1007b1e3bbdab4d4Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_3wljyn5mwer7nuxn)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260825.1885f44 latest | 2026-08-25 | 1885f44 | 19,032 B | C | view · diff |
| git:20260825.8cffe5d | 2026-08-25 | 8cffe5d | 19,635 B | C | view |
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl -L https://github.com/peass-ng/PEASS-ng/releases/latest/download/linpeas.sh | sh)
- fail: No instruction to read or print local credentials (matched: cat /var/www/*/wp-config.php /var/www/*/.env)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (19032 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No recursive delete of root, home or parent
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
snailsploit/claude-red · 6,831 stars · license MIT · pushed 2026-09-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3wljyn5mwer7nuxn GET https://markdownregistry.com/api/v1/resolve?ref=snailsploit/claude-red/offensive-linux-privesc GET https://markdownregistry.com/api/v1/blob/1007b1e3bbdab4d434a07c95d5a8edf8ef6d4cc1d8ef38a6f45ddbe01657a1ab
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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