pentest-privesc

pentest-privesc is a skill for Claude Code from fatihkan/badi. It costs 74 tokens per session (1,523 once invoked), scanned A, original, MIT.

A security-testing guide for finding ways to gain higher permissions on Linux, Windows, and containers. It reviews LinPEAS or WinPEAS results and suggests which privilege-escalation paths to examine.

In plain words
What is it for?
Use it to review SUID files, sudo rules, Windows token and UAC issues, kernel versions, Linux capabilities, and possible container escapes during an authorised security test.
Why use it?
It helps turn long system-scan results into a short list of likely paths, without requiring the tester to know every permission or configuration weakness.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions Claude Code.

Part of the badi plugin — 81 skills, 86 commands, 30 agents, 7 hooks shipped together

Good fit Use it to review SUID files, sudo rules, Windows token and UAC issues, kernel versions, Linux capabilities, and possible container escapes during an authorised security test.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fatihkan/badi/pentest-privesc
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.

Any agent
npx skills add fatihkan/badi --skill pentest-privesc
Clone the repo
git clone --depth 1 https://github.com/fatihkan/badi

Made for: Claude Code.

Or install badi, the plugin that ships this one along with the rest of its 81 skills, 86 commands, 30 agents, 7 hooks.

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 pentest-privesc

README.md
[![agentmods](https://agentmods.dev/badge/skills/fatihkan/badi/pentest-privesc/github.svg)](https://agentmods.dev/skills/fatihkan/badi/pentest-privesc)
Your own site
<a href="https://agentmods.dev/skills/fatihkan/badi/pentest-privesc"><img src="https://agentmods.dev/badge/skills/fatihkan/badi/pentest-privesc/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for pentest-privesc

Your own site · 80×15
<a href="https://agentmods.dev/skills/fatihkan/badi/pentest-privesc"><img src="https://agentmods.dev/badge/skills/fatihkan/badi/pentest-privesc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,523 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 21 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high YARA Match · line 3
    YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).
    Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
  • high Tool Misuse · line 37
    Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.
    Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
  • high Privilege Escalation · line 38
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Tool Misuse · line 40
    Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.
    Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
  • high Tool Misuse · line 42
    Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.
    Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
  • high YARA Match · line 42
    YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).
    Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
  • high Privilege Escalation · line 43
    Potential security issue detected. Manual review is recommended.
    Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
  • high Tool Misuse · line 129
    Code deploys a privileged Kubernetes workload (privileged container, hostPath mount, or host namespaces). This grants root on the node and is a node/cluster takeover vector.
    Fix: Remove privileged, hostPath, and host-namespace settings from workloads. Use a least-privilege securityContext, drop capabilities, and avoid mounting the host filesystem.
  • high Privilege Escalation · line 130
    Potential security issue detected. Manual review is recommended.
    Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
  • high Tool Misuse · line 130
    Code deploys a privileged Kubernetes workload (privileged container, hostPath mount, or host namespaces). This grants root on the node and is a node/cluster takeover vector.
    Fix: Remove privileged, hostPath, and host-namespace settings from workloads. Use a least-privilege securityContext, drop capabilities, and avoid mounting the host filesystem.
  • high Privilege Escalation · line 131
    Potential security issue detected. Manual review is recommended.
    Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
  • medium Privilege Escalation · line 3
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 26
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 40
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 42
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 143
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 147
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 37
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 55
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 153
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
How audits are shown
Origin original 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 5.1 $0.00074 $0.01523
Opus 5 $0.00037 $0.00762
Sonnet 5 $0.00015 $0.00305
Haiku 4.5 $0.00007 $0.00152

Measured 3d ago against content hash 49b636009060, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pentest-privesc scanned grade A with 1 finding 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 3d 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.

description: Privilege escalation methodology — Linux + Windows + container escape advisory. LinPEAS/WinPEAS analysis, SUID/capability abuse, kernel exploit selection. Triggers on privesc, privilege escalation, LinPEAS,

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

.claude/skills-vault/pentest-privesc/SKILL.md · 163 lines

How it starts

The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pentest-privesc

Linux + Windows + container privesc analysis. The user pastes LinPEAS/WinPEAS output; the skill prioritizes and suggests an exploit path.

Triggers

  • "linpeas output"
  • "winpeas output"
  • "how to privesc"
  • "SUID binary"
  • "sudo abuse"
  • "kernel exploit selection"
  • "container escape"
  • "UAC bypass"

Linux Privesc Vector List

Vector Detection Exploit Method
SUID binary find / -perm -4000 GTFOBins lookup
Capability getcap -r / 2>/dev/null CAP_SETUID, CAP_DAC_READ_SEARCH
Sudo rule sudo -l GTFOBins (NOPASSWD bins)
Writable /etc/passwd ls -la /etc/passwd echo "evil:x:0:0..." >>
Writable cron find /etc/cron* -writable Add a script
Path injection sudo + relative path PATH=/tmp:$PATH; ./binary
Kernel exploit uname -a exploit-db version match
LD_PRELOAD sudo env_keep malicious .so
Docker socket /var/run/docker.sock readable Container break
NFS no_root_squash mount source UID 0 file create
systemd timer writable /etc/systemd/* Timer override
Wildcard injection tar/rsync wildcard --checkpoint-action

LinPEAS Output Analysis

# The user pastes the linpeas output, the skill reads it in this order:

1. SUID binary list -> filter exploitable per GTFOBins
2. Capability output -> CAP_SETUID / CAP_NET_ADMIN priority
3. Sudo rule -> NOPASSWD + GTFOBins
4. Cron + writable -> add-a-script path
5. PATH analysis -> is there a writable spot
6. Kernel version -> e.g. Dirty Pipe, OverlayFS, Sequoia

GTFOBins quick template: https://gtfobins.github.io — "shell", "sudo", "suid", "capabilities", "file write" filters.

Windows Privesc Vector

Vector Detection Exploit
Unquoted service path wmic service get name,pathname Space in path + binplant
AlwaysInstallElevated reg query HKLM\Software\Policies\Microsoft\Windows\Installer Elevation via MSI
Token impersonation whoami /priv SeImpersonate / SeAssignPrimaryToken
Stored creds cmdkey /list, runas /savecred Use the saved cred
Weak service ACL accesschk.exe -uwcqv "Authenticated Users" * Service modify
Registry autorun HKLM...\Run writable Persistence + elevation
Scheduled task schtasks /query Task command override
DLL hijacking Process Monitor Missing DLL plant
Local admin via UAC bypass UAC level Auto fodhelper.exe, eventvwr.exe
Print Spooler PrintNightmare CVE-2021-1675 Local driver install

Read the full file on GitHub · 163 lines

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. 3d ago First seen · 163 lines · 74 tokens per session scan A 49b636009060

Subscribe to this mod's changes

pentest-privesc is a skill published in the GitHub repository fatihkan/badi (7 stars, last pushed 2d ago), licensed MIT. It adds 74 tokens to every session and 1,523 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-06.

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