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AusCERT Update AU-2008.0020 - [Win]
Microsoft Security Advisory 951306 has recently been updated with details
of publicly available exploit code
15 October 2008

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

Product:              Windows XP
                      Windows Vista
                      Windows Server 2003
                      Windows Server 2008
Operating System:     Windows
Impact:               Administrator Compromise
Access:               Existing Account
CVE Names:            CVE-2008-1436
Member content until: Wednesday, November 12 2008

Ref:                  AA-2008.0093

OVERVIEW

	Microsoft Security Advisory 951306 (originally released on April
	17 2008) has recently been updated with details of publicly
	available exploit code. [1]


IMPACT

	Successful exploitation of the vulnerability described in the
	advisory would allow an authenticated user to elevate their
	privileges to LocalSystem.

	The exploit requires the authenticated user to be able to run code,
	such as within Internet Information Services (IIS) and SQL Server.
	Microsoft makes mention that hosting providers may be at increased
	risk.

	The vulnerability affects Windows XP (SP2 and SP3), and all
	supported versions of Windows Vista, Windows Server 2003, and
	Windows Server 2008.


MITIGATION

	Currently there is no patch available - however Microsoft suggests
	the following workarounds:

	* IIS 6.0 - Configure a Worker Process Identity (WPI) for an
	  application pool in IIS to use a created account in IIS Manager
	  and disable MSDTC

	* IIS 7.0 - Specify a WPI for an application pool in IIS Manager

	* IIS 7.0 - Specify a WPI for an application pool using the Command
	  Line utility APPCMD.exe

	Microsoft is investigating whether a service pack, a monthly
	security update or an out-of-cycle security update should be
	released.


REFERENCES

        [1] Microsoft Security Advisory (951306): Vulnerability in
            Windows Could Allow Elevation of Privilege
            http://www.microsoft.com/technet/security/advisory/951306.mspx

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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