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Category:   Application (Forum/Board/Portal)  >   Spymac Web OS Vendors:   Spymac.com
Spymac Web OS Input Validation Weakness in 'showthread.php' Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1014928
SecurityTracker URL:  http://securitytracker.com/id/1014928
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Sep 19 2005
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Exploit Included:  Yes  
Version(s): 4.0
Description:   Lostmon reported a vulnerability in Spymac Web OS. A remote user can conduct cross-site scripting attacks.

The 'showthread.php' script does not properly filter HTML code from user-supplied input in several parameters before displaying the input. 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 the Spymac Web OS software 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.

Some demonstration exploit URLs are provided:

http://[target]/forums/showthread.php?threadid=195681[XSS-CODE]

http://[target]/forums/showthread.php?threadid=195805&postid=3579278[XSS-CODE]#post_3579278

http://[target]/forums/showthread.php?threadid=195605&curr=0[XSS-CODE]

The vendor was notified on September 17, 2005.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Spymac Web OS software, 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:  arnieshwartz.spymac.com/the_spymac_web_os.htm (Links to External Site)
Cause:   Input validation error

Message History:   None.


 Source Message Contents

Subject:  Multiple variable XSS in Spymac Web Os v4.0

#########################################################
Multiple variable XSS in Spymac Web Os v4.0
vendor url:http://www.spymac.com/
Advisory:http://lostmon.blogspot.com/2005/09/
multiple-variable-xss-in-spymac-web-os.html
Vendor notified : yes exploit avaible : yes
#########################################################

Spymac flaw that allows a remote cross site scripting attack.
This flaw exists because the application does not validate some
variables upon submission to some scripts.This could allow a user
to create a specially crafted URL that would execute arbitrary
code in a user's browser within the trust relationship between the
browser and the server,leading to a loss of integrity.

############
version afected
############

Spymac Web Os 3.0 beta 190

#########
Solution
#########

No solution was available at this time.

##########
timeline
##########

Discovered : 17 sep 2005
Vendor notify: 17 sep 2005
Vendor response:
Disclosure :17 sep 2005
Public disclosure:17 sep 2005


############
Examples
############

http://[victim]/forums/showthread.php?threadid=195681[XSS-CODE]

http://[victim]/forums/showthread.php?threadid=195805&postid=3579278[XSS-CODE]#post_3579278

http://[victim]/forums/showthread.php?threadid=195605&curr=0[XSS-CODE]


Thnx to estrella to be my ligth.
--
atentamente:
Lostmon (lostmon@gmail.com)
Web-Blog: http://lostmon.blogspot.com/
--
La curiosidad es lo que hace mover la mente....
 
 


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