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 do it...
- Right-click on Check this file and then select Inspect Element with Firebug.
- There is a
type="hidden"parameter on the first input of the form; double-click onhidden. - Replace
hiddenbytextand hit Enter.
- Now double-click...
