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coco-research / identity-federation

Use for authorized assessment of federated identity systems including SAML, OIDC, OAuth2 flows, SSO misconfiguration, and token confusion issues.

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SKILL.md
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Identity Federation (SAML / OIDC / OAuth)

适用场景

  • SAML Response 签名/断言篡改面(经典缺陷模式)
  • OIDC 隐式/授权码 + PKCE 缺失
  • redirect_uri / state / nonce 问题
  • IdP 与 SP 元数据、多租户 issuer 混淆
  • 与 api-security JWT 攻击互补(本 skill 偏联邦与 SSO 流)

工作流

□ 画清:User → SP → IdP → Token → SP
□ 收集:/.well-known/openid-configuration、SAML metadata
□ 检查:redirect_uri 精确匹配、state 绑定、PKCE
□ 检查:SAML 签名覆盖范围、algorithm 降级
□ 会话固定与登出失效

工具链

工具用途
Burp + SAML Raider 等断言编辑(授权)
jwt_toolJWT 段
浏览器 DevTools重定向链
IdP 管理日志审计

参考

  • references/sso-flow-checklist.md
  • ../api-security/ ../windows-ad/(企业 IdP)