1. Web Security Academy
  2. Authentication vulnerabilities
  3. Password-based
  4. Lab

Lab: Broken brute-force protection, IP block


This lab is vulnerable due to a logic flaw in its password brute-force protection. To solve the lab, brute-force the victim's password, then log in and access their account page.

Register for free to track your learning progress

The benefits of working through PortSwigger's Web Security Academy
  • Practise exploiting vulnerabilities on realistic targets.

  • Record your progression from Apprentice to Expert.

  • See where you rank in our Hall of Fame.

Already got an account? Login here