Java Serialize 09

Bookmarked!

This challenge covers exploiting toString() through a wrapper class, the technique behind BadAttributeValueExpException in Commons Collections.

Course

This exercise covers the exploitation of a serialization issue in Java using the toString() method as a gadget trigger. You will learn how wrapper classes can invoke toString() during deserialization to achieve command execution.

Ready to practice?

Get access to this lab and 600+ hands-on exercises with a PRO subscription.