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Mobile Backend

DevOps & Security
mobile-backend

Mobile Backend is an Agent Skill for devops & security published in the wgpsec/AboutSecurity repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

移动 App 后端 API 安全测试。当目标是移动应用的后端接口、发现 /api/v1/ 等移动端 API 路径、或需要测试 App 与服务器之间的通信安全时使用。覆盖 API 端点发现、认证机制测试、业务逻辑漏洞、移动端特有的安全问题

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/wgpsec/AboutSecurity/blob/HEAD/skills/exploit/auth/mobile-backend/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/mobile-backend, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

移动 App 后端 API 安全测试方法论

移动后端 API 和传统 Web 的区别:移动端通常直接调用 REST API(不经过浏览器),认证机制、参数格式、业务逻辑都有移动端特色。

⛔ 深入参考(必读)

Phase 1: API 端点发现

# spray 目录爆破(推荐)
spray -u http://target -d $ABOUTSECURITY_ROOT/Dic/Web/Directory/Fuzz_common.txt
# 或 ffuf
ffuf -u http://target/FUZZ -w $ABOUTSECURITY_ROOT/Dic/Web/Directory/Fuzz_common.txt -mc 200,301,302,403
# /api/v1/, /api/v2/, /mobile/api/, /graphql

检查文档:/docs, /swagger, /openapi.json, /redoc

App 逆向:抓包(Burp/Charles)| APK 反编译搜索 URL 字符串

Phase 2: 认证机制测试

认证方式特征攻击方向
JWTBearer eyJ...jwt-attack-methodology
API KeyX-API-Key泄露检测
OAuth/oauth/tokenoauth-sso-attack
自定义签名sign=md5(...)签名算法逆向

绕过测试:不带 Token 访问 | 过期 Token | 修改 user_id/role | 低权限访问高权限 API

Phase 3: 业务逻辑漏洞

越权访问(IDOR)

GET /api/v1/users/1001/profile → 自己
GET /api/v1/users/1002/profile → 别人?→ IDOR!

支付/验证码/竞态

→ 详细方法和 payload → references/mobile-logic-bugs.md

注意事项

  • 移动 API 通常比 Web 更信任客户端——后端校验更少
  • 注意 API 版本差异(v1 可能有漏洞,v2 修复了但 v1 未下线)