security-audit

# Security Audit Skill Security audit patterns (OWASP Top 10, LLM Top 10 2025, CWE Top 25 2025, CVSS v4.0), cloud/IaC, GitHub security. 80+ PHP/TYPO3 checkpoints (v14.3 LTS in `typo3-security.md`). ## Expertise Areas - **Vulnerabilities**: XXE, SQLi, XSS, CSRF, command injection, path traversal, file upload, deserialization, SSRF, SSTI, JWT, type juggling - **Standards**: OWASP Top 10 / API / LLM (2025), CWE Top 25, CVSS v3.1/v4.0, OWASP ASVS - **Cloud & IaC**: AWS; Terraform, Kubernetes, Docker, Helm - **API & Frontend**: REST/GraphQL authZ, rate limits, mass assignment, CSP, DOM-XSS - **AI Agents**: SKILL.md/AGENTS.md/CLAUDE.md/mcp.json/hooks.json audit; prompt injection; excessive agency ## Reference Files (in `references/`, `.md` implied) - **Core**: owasp-top10, cwe-top25, xxe-prevention, cvss-scoring, api-key-encryption - **Prevention**: deserialization-prevention, path-traversal-prevention, file-upload-security, input-validation, error-message-sanitization, ssh-forced-command-hardening - **Architecture**: authentication-patterns, security-headers, security-logging, cryptography-guide, security-invariants, indistinguishability-defences - **Language features** (`*-security-features`): php, python, javascript-typescript, nodejs, go - **Frameworks** (`*-security`): typo3, typo3-fluid, typo3-typoscript, symfony, react, vue - **Cloud & IaC**: aws-security, iac-security - **API & Frontend**: api-security, frontend-security - **AI Agent**: llm-security (OWASP LLM Top 10 2025) - **Threats**: modern-attacks, cve-patterns - **DevSecOps**: ci-security-pipeline, supply-chain-security, automated-scanning, gha-security, git-history-secrets - **Incident**: supply-chain-incident-response ## Security Checklist - [ ] `semgrep`/`opengrep`, `trivy fs --severity HIGH,CRITICAL`, `gitleaks` clean - [ ] bcrypt/Argon2 passwords, CSRF on state changes, TLS 1.2+ - [ ] Server-side input validation; parameterized SQL; XML entities off - [ ] Output encoding + CSP; no unserialize() on user input - [ ] API keys encrypted; exception messages sanitized - [ ] Secrets out of VCS; audit logging on - [ ] Uploads validated, renamed, outside web root - [ ] Headers HSTS + X-Content-Type-Options; dependencies scanned ## GitHub Actions Security - **NEVER** interpolate `${{ inputs.* }}` / `${{ github.event.* }}` in `run:` — use `env:` - Dependency triage: upgrade > override > dismiss. Full patterns: `references/gha-security.md`. ## Verification ```bash ./scripts/security-audit-dispatcher.sh /path/to/project # auto-detect stack ./scripts/security-audit.sh /path/to/project # PHP-only ./scripts/github-security-audit.sh owner/repo # GH repo ``` Dispatcher detects the stack from indicator files and runs matching `scripts/scanners/*.sh` (13 ecosystems; see `references/` index). --- > Contributing: https://github.com/netresearch/security-audit-skill