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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:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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