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TITLE:
ExBB Italia "exbb[home_path]" File Inclusion Vulnerability

SECUNIA ADVISORY ID:
SA21681

VERIFY ADVISORY:
http://secunia.com/advisories/21681/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
ExBB Italia 0.x
http://secunia.com/product/11758/

DESCRIPTION:
SHiKaA has discovered a vulnerability in ExBB Italia, which can be
exploited by malicious people to compromise a vulnerable system.

Input passed to the "exbb[home_path]" parameter in
modules/userstop/userstop.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 confirmed in versions 0.1 and 0.2. Other
versions may also be affected.

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

Set "register_globals" to "Off".

PROVIDED AND/OR DISCOVERED BY:
SHiKaA

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/2273

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About:
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vulnerabilities.

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