by r0t,der4444,cembo,VietMafia

Wednesday, April 05, 2006

vBug Tracker for vBulletin 3.5.x XSS vuln.

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Vuln. discovered by : r0t
Date: 5 april 2006
vendor:www.vbulletin.org
affected versions:vBug Tracker Version 3.5.1 and previous
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vBug Tracker contains a flaws that allows a remote cross site scripting attacks.
Those flaws exists because input passed to "sortorder" parameter isn't properly sanitised before being returned to the user.
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.

example :

/vbugs.php?do=list&s=&textsearch=&vbug_typeid
=0&vbug_statusid=0&vbug_severityid=0&vbug_ver
sionid=0&assignment=0&sortfield=lastedit&sort
order=%22%3Cscript%3Ealert('r0t')%3C/script%3E

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Solution:
Edit the source code to ensure that input is properly sanitised.
###############################################
More information @ unsecured-systems.com/forum/

1 Comments:

Blogger r0t told...

there is some missunderstnes by some vuln. researchers, cauz Vbug 3.5.1 isnt same as Vbulletin 3.5.1 ...
So, that vuln also was in 3.5.4 version of vBulletin.

6:51 AM

 

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