identity-federation · git:20260914.480426e · 2026-09-14 · sha256 8f5ec6529281ab2b
identity-federation git:20260914.480426eA
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--- name: identity-federation description: Use for authorized assessment of federated identity systems including SAML, OIDC, OAuth2 flows, SSO misconfiguration, and token confusion issues. user-invocable: true --- # 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 ```text □ 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_tool | JWT 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)