TITLE:
Microsoft Windows WMF Handling Arbitrary Code Execution

SECUNIA ADVISORY ID:
SA18255

VERIFY ADVISORY:
http://secunia.com/advisories/18255/

CRITICAL:
Extremely critical

IMPACT:
System access

WHERE:
>From remote

OPERATING SYSTEM:
Microsoft Windows Server 2003 Datacenter Edition
http://secunia.com/product/1175/
Microsoft Windows Server 2003 Enterprise Edition
http://secunia.com/product/1174/
Microsoft Windows Server 2003 Standard Edition
http://secunia.com/product/1173/
Microsoft Windows Server 2003 Web Edition
http://secunia.com/product/1176/
Microsoft Windows XP Home Edition
http://secunia.com/product/16/
Microsoft Windows XP Professional
http://secunia.com/product/22/

DESCRIPTION:
A vulnerability has been discovered in Microsoft Windows, which can
be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to an error in the handling of
corrupted Windows Metafile files (".wmf"). This can be exploited to
execute arbitrary code by tricking a user into opening a malicious
".wmf" file in "Windows Picture and Fax Viewer" or previewing a
malicious ".wmf" file in explorer (i.e. selecting the file). This can
also be exploited automatically when a user visits a malicious web
site using Microsoft Internet Explorer.

NOTE: Exploit code is publicly available. This is being exploited in
the wild.

The vulnerability has been confirmed on a fully patched system
running Microsoft Windows XP SP2. Microsoft Windows XP SP1 and
Microsoft Windows Server 2003 SP0 / SP1 are reportedly also affected.
Other platforms may also be affected.

SOLUTION:
Do not open or preview untrusted ".wmf" files and set security level
to "High" in Microsoft Internet Explorer.

PROVIDED AND/OR DISCOVERED BY:
First reported in the wild by "noemailpls".

Exploit code and additional information provided by H D Moore.

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