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AusCERT Update AU-2006.0001 - [Win]
Microsoft patch released for WMF handling vulnerability
6 January 2006

        AusCERT Update Summary
        ----------------------

Product:           Graphics Rendering Engine
Publisher:         Microsoft
Operating System:  Windows XP SP2 and prior
                   Windows 2000 SP4 and prior
                   Windows Server 2003 SP1 and prior
                   WIndows 98
                   Windows ME
Impact:            Execute Arbitrary Code/Commands
Access:            Remote/Unauthenticated
CVE Names:         CVE-2005-4560

Ref:               AU-2005.0023
                   AL-2005.0043

Original Bulletin: 
	http://www.microsoft.com/technet/security/bulletin/ms06-001.mspx

OVERVIEW:

	Microsoft has released an out of cycle patch for the WMF file handling
	vulnerability described in Microsoft Security Advisory 912840 [1].

	Those responsible for administering vulnerable versions of Windows
	are advised to apply this patch as soon as possible.  Microsoft have 
	provided information regarding the vulnerability, including details on 
	how to obtain the patch for your version of Windows in Microsoft 
	Security Bulletin MS06-001 [2].

	Additionally, administrators who have deregistered shimgvw.dll as per 
	the instructions in AusCERT Update AU-2005.0023 [3] may wish to 
	re-register the library after applying the patch. 

	To re-register the library and re-enable the "Windows Picture and Fax 
	Viewer", run the following command after the patch has been applied:

	regsvr32 %windir%\system32\shimgvw.dll 

	
IMPACT:

	Exploitation of this vulnerability allows an attacker to execute
	arbitrary code with the privileges of the user viewing the malicious
	file or web page.


RESOLUTION:

	 Apply the patch [2] provided by Microsoft to resolve the underlying 
	 vulnerability.

	 
REFERENCES:

	[1] http://www.microsoft.com/technet/security/advisory/912840.mspx
	[2] http://www.microsoft.com/technet/security/bulletin/ms06-001.mspx
	[3] http://www.auscert.org.au/5873


AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

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