OCS Inventory NG - Directory Traversal  (May 30 2009)
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* Product

  Open Computer and Software (OCS) Inventory NG
(http://www.ocsinventory-ng.org) 


* Vulnerable Versions

  OCS Inventory NG 1.02 (Unix)


* Vendor Status

  Vendor has been notified and the vulnerability has been fixed in
version 1.02.1.


* Details

  The Open Computer and Software (OCS) Inventory Next Generation (NG)
provides relevant inventory information about system configurations and
software on the network. The server can be managed using a web
interface. It is possible for unauthenticated users to extract arbitrary
files from the hosting system due to inadequate file handling in cvs.php.

  cvs.php:

		} elseif (isset($_GET['log'])){
			if (file_exists($_GET['rep'].$_GET['log'])){
				$tab = file($_GET['rep'].$_GET['log']);
				while(list($cle,$val) = each($tab)) {
		 		  $toBeWritten  .= $val."\r\n";
				}
				$filename=$_GET['log'];
			}
		}


* Impact

  Attackers may be able to read arbitrary files from the hosting system.


* Exploit

  The vulnerability can be exploited by just using a web browser:

http://example.org/ocsreports/cvs.php?log=/etc/passwd 

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http://www.leidecker.info/advisories/2009-05-30-ocs_inventory_ng_directory_traversal.shtml 
Nico Leidecker - http://www.leidecker.info