BPSSRF

MediumWeb Security

Overview

I've built the ultimate SSRF protection you can use it for any web application! It checks hostnames, validates IPs, prevents DNS rebinding, and even limits redirects. There's absolutely no way anyone could bypass this security layer. I've been testing it extensively, and I'm confident it's bulletproof. Want to prove me wrong? Good luck with that - you'll need it!

Lab Details

Prerequisites & Requirements

  • Understanding of Server-Side Request Forgery (SSRF) vulnerabilities
  • Basic knowledge of HTTP and redirects
  • Familiarity with Python and Flask applications
  • Understanding of DNS concepts
  • Google account for email-based techniques

What will you learn?

  • How to analyze SSRF protection mechanisms in a white-box setting
  • Advanced SSRF bypass techniques using redirect chains
  • How to leverage Google URL redirects in SSRF attacks
  • DNS rebinding attack implementation for SSRF exploitation
  • URL parameter manipulation and interception techniques

Tools

  • Burp Suite or similar proxy tool
  • ngrok for HTTP tunneling
  • Python environment (for running Flask applications)
  • Gmail account
  • DNS rebinding service (lock.cmpxchg8b.com/rebinder.html)

Job Positions

Bug Bounty Hunter

Tags

SsrfOpen RedirectPythonSource Code ReviewLogic Flaws