Imported from yaklang/hack-skills (
skills/auth-sec/SKILL.md) via skills.sh. Install upstream withnpx skills add yaklang/hack-skills --skill auth-sec. Copyright stays with the author.
Authentication and Authorization Router
This is the routing entry point for authentication, sessions, and authorization boundaries.
Use it to decide whether the issue is mainly login mechanics, object-level authorization, browser trust boundaries, or identity protocols such as OAuth/JWT/SAML before going deeper.
When to Use
- The target includes login, registration, password reset, 2FA, sessions, JWT, OAuth, or SSO
- You suspect object authorization flaws, cross-tenant access, cross-origin reads, CSRF, or protocol misconfiguration
- You need to decide whether to test authentication or authorization first
Skill Map
- Authentication Bypass: login bypass, password reset, 2FA, enumeration, brute-force protections
- IDOR Broken Object Authorization: IDOR, BOLA, BFLA, missing object permissions
- JWT OAuth Token Attacks: algorithm confusion, key trust issues, claim abuse, token forgery
- OAuth OIDC Misconfiguration: redirect URI, state, nonce, PKCE, account binding
- CSRF Cross Site Request Forgery: CSRF tokens, SameSite, JSON CSRF, login CSRF
- CORS Cross Origin Misconfiguration: reflected Origin, credentialed cross-origin reads, allowlist bypass
- SAML SSO Assertion Attacks: assertion wrapping, signature validation, audience, ACS boundaries
Recommended Flow
- First confirm the authentication model and session boundaries
- Then confirm object-level and function-level authorization
- Then move to token, cross-origin, and protocol details
- If enterprise federation exists, continue with OAuth, OIDC, or SAML topics
Related Categories
- api-sec
- Default credentials, username variants, wordlist sizing, and port focus are consolidated in authbypass-authentication-flaws
