Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

       Vulnerability in Remote Access Service NDISTAPI Driver Could
                       Allow Elevation of Privilege
                              10 August 2011


        AusCERT Security Bulletin Summary

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows Server 2003
Impact/Access:     Administrator Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-1974  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Microsoft Security Bulletin MS11-062 - Important
Vulnerability in Remote Access Service NDISTAPI Driver Could Allow Elevation of Privilege (2566454)
Published: August 09, 2011
Version: 1.0

General Information

Executive Summary

   This security update resolves a privately reported vulnerability in all
   supported editions of Windows XP and Windows Server 2003. This security
   update is rated Important for all supported editions of Windows XP and
   Windows Server 2003. Windows Vista, Windows Server 2008, Windows 7, and
   Windows Server 2008 R2 are not affected by the vulnerability. For more
   information, see the subsection, Affected and Non-Affected Software, in
   this section.

   The vulnerability could allow elevation of privilege if an attacker
   logs on to an affected system and runs a specially crafted application
   designed to exploit the vulnerability and take complete control over
   the affected system. An attacker must have valid logon credentials and
   be able to log on locally to exploit this vulnerability.

Affected Software

   Windows XP Service Pack 3
   Windows XP Professional x64 Edition Service Pack 2
   Windows Server 2003 Service Pack 2
   Windows Server 2003 x64 Edition Service Pack 2
   Windows Server 2003 with SP2 for Itanium-based Systems

Vulnerability Information

   NDISTAPI Elevation of Privilege Vulnerability - CVE-2011-1974

   An elevation of privilege vulnerability exists in the Remote Access
   Service NDISTAPI driver. The vulnerability is caused when the NDISTAPI
   driver improperly validates user-supplied input when passing data from
   user mode to the Windows kernel. A local attacker who successfully
   exploited this vulnerability could execute arbitrary code and take
   complete control of an affected system. The attacker could then install
   programs; view, change, or delete data; or create new accounts with
   full user rights.

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. 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.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:


Australian Computer Emergency Response Team
The University of Queensland
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.
Comment: http://www.auscert.org.au/render.html?it=1967