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Identity Federation
ASecurityUse for authorized assessment of federated identity systems including SAML, OIDC, OAuth2 flows, SSO misconfiguration, and token confusion issues.
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- Added October 10, 2026
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[](https://www.skillsdirectory.com/skills/skillmds-identity-federation)---
name: identity-federation
description: Use for authorized assessment of federated identity systems including SAML, OIDC, OAuth2 flows, SSO misconfiguration, and token confusion issues.
---
# Identity Federation (SAML / OIDC / OAuth)
## ACTION REQUIRED(读完后立刻执行)
1. `NOW`: 读取 precedent-pentest;SSO 测试账号与 IdP/SP 范围入 scope
2. `NOW`: 禁止锁定真实用户账户的暴力尝试
3. `NEXT`: 抓包工具与文档(元数据 URL)
4. `ACT`: 协议流映射 → 常见错配 → 验证
## 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)
## 路由上下文
**上游**: MASTER R37
**下游**: 纯 API JWT → api-security;云 IdP → cloud-k8s
## 任务完成自检
- [ ] 是否映射完整 SSO 流?
- [ ] 每个 Finding 是否有复现与影响?
- [ ] Checklist?Files in this skill
- SKILL.md
- references/sso-flow-checklist.md
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