[NT] Adventia Chat Cross Site Scripting

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  Adventia Chat Cross Site Scripting
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SUMMARY

" <http://www.adventia.com/> Adventia Chat Server Pro is an ASP program 
that allows you to easily add multiple HTML-only chat rooms to your site, 
transforming your web site or intranet into a dynamic and successful 
online community comprised of customers, users, suppliers or employees."

Cross Site Scripting vulnerability has been discovered in Adventia Chat, 
the vulnerability allows running malicious code on user's browsers in 
context of affected site.

DETAILS

Vulnerable Systems:
 * Adventia Chat version 3.1
 * Adventia Chat Server Pro version 3.0

Adventia Chat has by default its HTML code embeeding feature enabled, this 
allows all scripts to be inserted in the chat space. This may lead to a 
cross site scripting vulnerability in all the chat users' browsers 
(including cookie theft and session spoofing). As the entered text is of a 
persistent nature an attack can continue even after the attacker has left 
the chat application.

Proof of Concept:
Visit http://www.adventia.com/cgi-bin/chatpro/login.asp and enter any 
script text in login field.


ADDITIONAL INFORMATION

The information has been provided by  <mailto:[email protected]> 
Morning Wood.
This vulnerability was discovered by Donnie Werner of  
<http://exploitlabs.com> exploitlabs



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