Using Firebug to analyze and alter basic behavior

Firebug is a browser add-on that allows us to analyze the inner components of a web page, such as table elements, cascading style sheets (CSS) classes, frames, and so on. It also has the ability to show us DOM objects, error codes, and request-response communication between the browser and server.

In the previous recipe, we saw how to look into a web page's HTML source code and found a hidden input field that established some default values for the maximum size of a file. In this recipe, we will see how to use the browser's debugging extensions, in this particular case, Firebug for Firefox or OWASP-Mantra.

Getting ready

With vulnerable_vm running, browse to http://192.168.56.102/WackoPicko.

How to ...

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