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TITLE:
phpBB Blend Portal System Module "phpbb_root_path" File Inclusion

SECUNIA ADVISORY ID:
SA20350

VERIFY ADVISORY:
http://secunia.com/advisories/20350/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Blend Portal System 1.x (module for phpBB)
http://secunia.com/product/10215/

DESCRIPTION:
Mustafa Can Bjorn has reported a vulnerability in the Blend Portal
System module for phpBB, which can be exploited by malicious people
to compromise a vulnerable system.

Input passed to the "phpbb_root_path" parameter in
blend_data/blend_common.php isn't properly verified, before it is
used to include files. This can be exploited to include arbitrary
files from external and local resources.

Successful exploitation requires that "register_globals" is enabled.

The vulnerability has been reported in version 1.2.0. Other versions
may also be affected.

SOLUTION:
Apply code changes as instructed by the vendor.
http://phpbb-tweaks.com/topics.html-p-17623#17623

PROVIDED AND/OR DISCOVERED BY:
Mustafa Can Bjorn

ORIGINAL ADVISORY:
http://www.nukedx.com/?viewdoc=41

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