后端与数据库

401-403-bypass-techniques

yaklang/hack-skills

401/403 bypass playbook. Use when encountering access-denied responses on admin panels, API endpoints, or restricted paths. Covers path manipulation, HTTP method tampering, header injection, protocol downgrade, and automated bypass tools.

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安装命令

npx skills add https://github.com/yaklang/hack-skills --skill 401-403-bypass-techniques

SKILL.md

SKILL: 401/403 Bypass Techniques — Expert Attack Playbook

AI LOAD INSTRUCTION: Comprehensive 401/403 forbidden bypass techniques. Covers path normalization tricks, HTTP method override, header-based bypasses (X-Original-URL, X-Forwarded-For), protocol version tricks, and combination attacks. Base models typically know 2-3 header bypasses but miss the full matrix of path manipulation variants and verb+path combos.

0. RELATED ROUTING


1. PATH MANIPULATION BYPASSES

The core idea: the reverse proxy/WAF checks one path format, but the backend normalizes differently.

1.1 Trailing Slash / Missing Slash