Kali Linux Web Penetration Testing Cookbook

Using Tamper Data add-on to intercept and modify requests

Sometimes, applications have client-side input validation mechanisms through JavaScript, hidden forms, or POST parameters that one doesn't know or can't see or manipulate directly in the address bar; to test these and other kind of variables, we need to intercept the requests the browser sends and modify them before they reach the server. In this recipe, we will use a Firefox add-on called Tamper Data to intercept the submission of a form and alter some values before it leaves our computer.

How to do it...

1. Go to Mantra's menu and navigate to Tools | Application Auditing | Tamper Data.
   
2. Tamper ...