offensive-idor

To test for IDOR vulnerabilities, capture requests containing object IDs using a proxy, then replay them under different user sessions to check for horizontal and vertical access control failures across web APIs and mobile backends.

An insecure direct object reference occurs when applications expose internal object IDs without proper authorization, allowing unauthorized access or modifications by manipulating references in URLs, request bodies, cookies, or headers.

The best way to verify IDOR access control bypasses is using a structured methodology with test accounts at multiple privilege levels, replaying intercepted traffic to confirm missing ownership checks and document unauthorized access.

To fix insecure direct object reference vulnerabilities, implement proper authorization checks and use indirect references, ensuring every object access validates user ownership before returning or modifying data.

Yes, you can use proxy-based traffic capture to identify object references in mobile backend requests and manipulate them across different sessions to reveal unauthorized horizontal or vertical access.