From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Nov 17 2005 - 10:02:04 CST

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TITLE:
Mambo "register_globals" Emulation Layer Overwrite Vulnerability

SECUNIA ADVISORY ID:
SA17622

VERIFY ADVISORY:
http://secunia.com/advisories/17622/

CRITICAL:
Highly critical

IMPACT:
Manipulation of data, System access

WHERE:
From remote

SOFTWARE:
Mambo 4.x
http://secunia.com/product/872/

DESCRIPTION:
peter MC tachatte has discovered a vulnerability in Mambo, which can
be exploited by malicious people to manipulate certain information
and compromise a vulnerable system.

The vulnerability is caused due to an error in the "register_globals"
emulation layer in "globals.php" where certain arrays used by the
system can be overwritten. This can be exploited to include arbitrary
files from external and local resources via the
"mosConfig_absolute_path" parameter.

This is related to:
SA17441

Successful exploitation requires that "register_globals" is
disabled.

The vulnerability has been confirmed in version 4.5.2.3. Other
versions may also be affected.

SOLUTION:
Edit the source code to ensure that pre-defined arrays used by the
system cannot be overwritten via user supplied parameters.

PROVIDED AND/OR DISCOVERED BY:
peter MC tachatte

OTHER REFERENCES:
SA17441:
http://secunia.com/advisories/17441/

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