security-pen-testing

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---
name: "security-pen-testing"
description: "Use when the user asks to perform security audits, penetration testing, vulnerability scanning, OWASP Top 10 checks, or offensive security assessments. Covers static analysis, dependency scanning, secret detection, API security testing, and pen test report generation."
---

# Security Penetration Testing

Hands-on offensive security testing skill for finding vulnerabilities before attackers do. This is NOT compliance checking (see senior-secops) or security policy writing (see senior-security) — this is about systematic vulnerability discovery through authorized testing.

---

## Table of Contents

- [Overview](#overview)
- [OWASP Top 10 Systematic Audit](#owasp-top-10-systematic-audit)
- [Static Analysis](#static-analysis)
- [Dependency Vulnerability Scanning](#dependency-vulnerability-scanning)
- [Secret Scanning](#secret-scanning)
- [API Security Testing](#api-security-testing)
- [Web Vulnerability Testing](#web-vulnerability-testing)
- [Infrastructure Security](#infrastructure-security)
- [Pen Test Report Generation](#pen-test-report-generation)
- [Responsible Disclosure Workflow](#responsible-disclosure-workflow)
- [Workflows](#workflows)
- [Anti-Patterns](#anti-patterns)
- [Cross-References](#cross-references)

---

## Overview

### What This Skill Does

This skill provides the methodology, checklists, and automation for **offensive security testing** — actively probing systems to discover exploitable vulnerabilities. It covers web applications, APIs, infrastructure, and supply chain security.

### Distinction from Other Security Skills

| Skill | Focus | Approach |
|-------|-------|----------|
| **security-pen-testing** (this) | Finding vulnerabilities | Offensive — simulate attacker techniques |
| senior-secops | Security operations | Defensive — monitoring, incident response, SIEM |
| senior-security | Security policy | Governance — policies, frameworks, risk registers |
| skill-security-auditor | CI/CD gates | Automated — pre-merge security checks |

### Prerequisites

All testing described here assumes **written authorization** from the system owner. Unauthorized testing is illegal under the CFAA and equivalent laws worldwide. Always obtain a signed scope-of-work or rules-of-engagement document before starting.

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## OWASP Top 10 Systematic Audit

Use the vulnerability scanner tool for automated checklist generation:

```bash
# Generate OWASP checklist for a web application
python scripts/vulnerability_scanner.py --target web --scope full

# Quick API-focused scan
python scripts/vulnerability_scanner.py --target api --scope quick --json
```

### Quick Reference

| # | Category | Key Tests |
|---|----------|-----------|
| A01 | Broken Access Control | IDOR, vertical escalation, CORS, JWT claim manipulation, forced browsing |
| A02 | Cryptographic Failures | TLS version, password hashing, hardcoded keys, weak PRNG |
| A03 | Injection | SQLi, NoSQLi, command injection, template injection, XSS |
| A04 | Insecure Design | Rate limiting, business logic abuse, multi-step flow bypass |
| A05 | Security Misconfiguration | Default credentials, debug mode, security headers, directory listing |
| A06 | Vulnerable Components | Dependency audit (npm/pip/go), EOL checks, known CVEs |
| A07 | Auth Failures | Brute force, session cookie flags, session invalidation, MFA bypass |
| A08 | Integrity Failures | Unsafe deserialization, SRI checks, CI/CD pipeline integrity |
| A09 | Logging Failures | Auth event logging, sensitive data in logs, alerting thresholds |
| A10 | SSRF | Internal IP access, cloud metadata endpoints, DNS rebinding |

```bash
# Audit dependencies
python scripts/dependency_auditor.py --file package.json --severity high
python scripts/dependency_auditor.py --file requirements.txt --json
```

See [owasp_top_10_checklist.md](references/owasp_top_10_checklist.md) for detailed test procedures, code patterns to detect, remediation steps, and CVSS scoring guidance for each