MantisBT 1.2.3 Cross Site Scripting / Path Disclosure

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MantisBT <=1.2.3 (db_type) Cross-Site Scripting & Path Disclosure Vulnerability  
  
  
Vendor: MantisBT Group  
Product web page: http://www.mantisbt.org  
Version affected: <1.2.4  
  
Summary: MantisBT is a free popular web-based bugtracking system. It is written in the PHP  
scripting language and works with MySQL, MS SQL, and PostgreSQL databases and a webserver.  
MantisBT has been installed on Windows, Linux, Mac OS, OS/2, and others. Almost any web  
browser should be able to function as a client. It is released under the terms of the GNU  
General Public License (GPL).  
  
Desc: Mantis Bug Tracker suffers from a cross-site scripting and a path disclosure  
vulnerability. The XSS issue is triggered when input passed via the "db_type" parameter  
to the admin/upgrade_unattended.php script is not properly sanitised before being returned  
to the user. This can be exploited to execute arbitrary HTML and script code in a user's  
browser session in context of an affected site. The PD weakness is caused due to the  
application displaying the full installation path in an error report, when supplying an  
invalid "db_type" parameter to the admin/upgrade_unattended.php script.  
  
Tested on: Microsoft Windows XP Professional SP3 (English)  
Debian GNU/Linux (squeeze)  
Apache 2.2.14 (Win32)  
MySQL 5.1.41  
PHP 5.3.1  
  
Vulnerability discovered by: Gjoko 'LiquidWorm' Krstic  
liquidworm gmail com  
Zero Science Lab - http://www.zeroscience.mk  
  
  
Advisory ID: ZSL-2010-4983  
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2010-4983.php  
Vendor Advisory URL: http://www.mantisbt.org/bugs/view.php?id=12607  
  
13.12.2010  
  
  
PoC:  
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Dork: Copyright+MantisBT Group  
  
XSS: http://[MANTIS_ROOT_HOST]/admin/upgrade_unattended.php?db_type=%3Cscript%3Ealert%281%29%3C/script%3E  
  
PD: http://[MANTIS_ROOT_HOST]/admin/upgrade_unattended.php?db_type=%27  
  
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