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TITLE:
PHPOpenChat "sourcedir" File Inclusion Vulnerability

SECUNIA ADVISORY ID:
SA14600

VERIFY ADVISORY:
http://secunia.com/advisories/14600/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
PHPOpenChat 3.x
http://secunia.com/product/4784/

DESCRIPTION:
Mafia_Boy has reported a vulnerability in PHPOpenChat, which can be
exploited by malicious people to compromise a vulnerable system.

Input passed to the "sourcedir" parameter in "contrib/yabbse/poc.php"
is not 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 3.0.1 and prior.

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

PROVIDED AND/OR DISCOVERED BY:
Mafia_Boy, Albania Security Clan.

ORIGINAL ADVISORY:
http://www.albanianhaxorz.org/advisory/phpopenchaten.txt

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