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Category:   Application (Web Server/CGI)  >   BRS WebWeaver Vendors:   Southam, Blaine R.
BRS WebWeaver Input Validation Flaw in ISAPISkeleton.dll Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1008880
SecurityTracker URL:  http://securitytracker.com/id/1008880
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jan 28 2004
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Exploit Included:  Yes  
Version(s): 1.07
Description:   An input validation vulnerability was reported in BRS WebWeaver in ISAPISkeleton.dll. A remote user can conduct cross-site scripting attacks.

Oliver Karow reported that 'ISAPISkeleton.dll' does not filter HTML code from an invalid request before displaying information from the user-supplied URL. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running BRS WebWeaver and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

A demonstration exploit URL is provided:

http://[target]/scripts/ISAPISkeleton.dll?<script>alert("Ooops!")</script>

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the BRS WebWeaver server, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   No solution was available at the time of this entry.
Vendor URL:  www.brswebweaver.com/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  BRS WebWeaver Webserver Cross Site Scripting Vulnerability


BRS WebWeaver Webserver Cross Site Scripting Vulnerability
================================================
 
Whatis:
=====
 
BRS WebWeaver is a free personal web server that runs on the Windows 
platform.
 
Version:
======
 
V 1.07
 
Exploiting:
=======
 
http://127.0.0.1/scripts/ISAPISkeleton.dll?<script>alert("Ooops!")</script>
 
Vendor:
======
 
http://www.brswebweaver.com
 
Credit:
=====
 
www.oliverkarow.de

 
 


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