WebApp Sec mailing list archives

Re: Testing app with heavy use of JS


From: Lluis Mora <llmora () sentryware com>
Date: Mon, 13 Sep 2004 15:41:02 +0200

Hi,

What about using a HTTP "modification" proxy - it allows you to manipulate the raw HTTP request after the browser has generated it (via JS or whatever) and sent it.

They usually allow replay - you just have to submit the form once with the values the application is expecting - so that you do not trigger the client-side input validation - then intercept the request and do as many modifications to the parameters as you want.

A search for "pentest http proxy" should bring a few nice tools, I personally like burp_proxy.

Cheers,

Lluis
.

tblinux () covad net wrote:
Anybody know of a good way to strip or catch and manipulate input to a web app
that uses JS to do error checking AND specify the input target address? ...oh
and the "submit button" is JS driven too...
Other than hand editing 30 screens of JS code?




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