1. Web Security Academy
  2. SSRF
  3. Blind
  4. Lab

Lab: Blind SSRF with out-of-band detection

PRACTITIONER

This site uses analytics software which fetches the URL specified in the Referer header when a product page is loaded.

To solve the lab, use this functionality to cause an HTTP request to the public Burp Collaborator server.

Note

To prevent the Academy platform being used to attack third parties, our firewall blocks interactions between the labs and arbitrary external systems. To solve the lab, you must use Burp Collaborator's default public server (burpcollaborator.net).