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TITLE:
phpBB SupaNav Module "phpbb_root_path" File Inclusion

SECUNIA ADVISORY ID:
SA26127

VERIFY ADVISORY:
http://secunia.com/advisories/26127/

CRITICAL:
Highly critical

IMPACT:
Exposure of system information, Exposure of sensitive information,
System access

WHERE:
>From remote

SOFTWARE:
SupaNav 1.x (module for phpBB)
http://secunia.com/product/14825/

DESCRIPTION:
bd0rk has discovered a vulnerability in the SupaNav module for phpBB,
which can be exploited by malicious people to disclose sensitive
information or to compromise a vulnerable system.

Input passed to the "phpbb_root_path" parameter in link_main.php is
not properly verified before being used to include files. This can be
exploited to include arbitrary files from local or external
resources.

Successful exploitation requires that "register_globals" is enabled.

The vulnerability is confirmed in version 1.0.0. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly verified.

PROVIDED AND/OR DISCOVERED BY:
bd0rk

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/4197

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