/auth-sec

name: auth-sec
description: >-
  Entry P1 category router for authentication and authorization. Use when
  testing login flows, sessions, object authorization, JWT, OAuth, CORS, CSRF,
  and enterprise SSO weaknesses before any deeper auth topic skill.

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](../authbypass-authentication-flaws/SKILL.md): login bypass, password reset, 2FA, enumeration, brute-force protections
• [IDOR Broken Object Authorization](../idor-broken-object-authorization/SKILL.md): IDOR, BOLA, BFLA, missing object permissions
• [JWT OAuth Token Attacks](../jwt-oauth-token-attacks/SKILL.md): algorithm confusion, key trust issues, claim abuse, token forgery
• [OAuth OIDC Misconfiguration](../oauth-oidc-misconfiguration/SKILL.md): redirect URI, state, nonce, PKCE, account binding
• [CSRF Cross Site Request Forgery](../csrf-cross-site-request-forgery/SKILL.md): CSRF tokens, SameSite, JSON CSRF, login CSRF
• [CORS Cross Origin Misconfiguration](../cors-cross-origin-misconfiguration/SKILL.md): reflected Origin, credentialed cross-origin reads, allowlist bypass
• [SAML SSO Assertion Attacks](../saml-sso-assertion-attacks/SKILL.md): assertion wrapping, signature validation, audience, ACS boundaries

Recommended Flow

1. First confirm the authentication model and session boundaries 2. Then confirm object-level and function-level authorization 3. Then move to token, cross-origin, and protocol details 4. If enterprise federation exists, continue with OAuth, OIDC, or SAML topics

Related Categories

• [api-sec](../api-sec/SKILL.md)
• Default credentials, username variants, wordlist sizing, and port focus are consolidated in [authbypass-authentication-flaws](../authbypass-authentication-flaws/SKILL.md)