[CVE-ID REQUEST] vBulletin - Multiple Open Redirects

[Robert Gilbert <rgilbert@xxxxxxxxxx>]

Product: vBulletin
Version: 3 - 4.1.3
Release Date: 06/02/2011
Risk: Low
Authentication: Not required to exploit.
Remote: Yes

Description: 
Multiple Open Redirect vulnerabilities in vBulletin version 4.1.3 and below 
allow remote attackers to redirect users to arbitrary web sites and conduct 
phishing attacks via the "url" parameter. By appending 
?url=http://attackersite.com any number of pages, the user will be redirected 
to a potentially dangerous site. This is particularly interesting when used on 
the registration form or the password reset form. 

Exploit Example:
http://forum.pwndshop.com/register.php?do=checkdate&url=http://attackersite.com

Vendor Notified: Yes

Reference: 
http://www.vbulletin.com/forum/showthread.php/381014-Potential-Phishing-Vector?p=2166441
https://www.owasp.org/index.php/Open_redirect

Credit:

Robert Gilbert
Senior Consultant
HALOCK Security Labs, Purpose Driven Security(tm)
rgilbert [-at-] halock [-dot-] com 
http://www.halock.com 
http://blog.halock.com 


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