1. Web Security Academy
  2. Insecure deserialization
  3. Exploiting
  4. Lab

Lab: Developing a custom gadget chain for Java deserialization

EXPERT

This lab uses a serialization-based session mechanism. If you can construct a suitable gadget chain, you can exploit this lab's insecure deserialization to obtain the administrator's password.

To solve the lab, gain access to the source code and use it to construct a gadget chain to obtain the administrator's password. Then, log in as the administrator and delete Carlos's account.

You can access your own account using the following credentials: wiener:peter

Note that solving this lab requires basic familiarity with another topic that we've covered on the Web Security Academy.