testing-mobile-api-authentication
Testing Mobile API Authentication
When to Use
Use this skill when:
- Assessing mobile app backend API authentication during penetration tests
- Testing JWT token implementation for common vulnerabilities (none algorithm, weak signing)
- Evaluating OAuth 2.0 / OIDC flows in mobile applications for redirect, PKCE, and scope issues
- Testing for broken object-level authorization (BOLA/IDOR) in API endpoints
Do not use this skill against production APIs without explicit authorization and rate-limiting awareness.
Prerequisites
- Burp Suite or mitmproxy configured as mobile device proxy
- SSL pinning bypassed on target application (if implemented)
- Valid test account credentials for the target application
- Postman or curl for API request crafting
- jwt.io or PyJWT for JWT analysis and manipulation
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