-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2009.0003 -- AUSCERT ALERT
                                   [Win]
             Microsoft Security Bulletin MS09-001 - Critical -
         Vulnerabilities in SMB Could Allow Remote Code Execution
                              14 January 2009

===========================================================================

        AusCERT Alert Summary
        ---------------------

Product:              Microsoft Windows 2000 Service Pack 4
                      Windows XP Service Pack 2 and Windows XP Service Pack 
                        3
                      Windows XP Professional x64 Edition and Windows XP 
                        Professional x64 Edition Service Pack 2
                      Windows Server 2003 Service Pack 1 and Windows Server 
                        2003 Service Pack 2
                      Windows Server 2003 x64 Edition and Windows Server 
                        2003 x64 Edition Service Pack 2
                      Windows Server 2003 with SP1 for Itanium-based Systems 
                        and Windows Server 2003 with SP2 for Itanium-based 
                        Systems
                      Windows Vista and Windows Vista Service Pack 1
                      Windows Vista x64 Edition and Windows Vista x64 
                        Edition Service Pack 1
                      Windows Server 2008 for 32-bit Systems*
                      Windows Server 2008 for x64-based Systems*
                      Windows Server 2008 for Itanium-based Systems
Publisher:            Microsoft
Operating System:     Windows
Impact:               Execute Arbitrary Code/Commands
                      Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-4114 CVE-2008-4834 CVE-2008-4835

Original Bulletin:    
  http://www.microsoft.com/technet/security/bulletin/ms09-001.mspx

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

Microsoft Security Bulletin MS09-001 - Critical

Vulnerabilities in SMB Could Allow Remote Code Execution (958687)

   Published: January 13, 2009

   Version: 1.0

General Information

Executive Summary

   This security update resolves two privately reported vulnerabilities and 
   one publicly disclosed vulnerability in Microsoft Server Message Block 
   (SMB) Protocol. The vulnerabilities could allow remote code execution on 
   affected systems. An attacker who successfully exploited these 
   vulnerabilities could install programs; view, change, or delete data; or 
   create new accounts with full user rights. Firewall best practices and 
   standard default firewall configurations can help protect networks from 
   attacks that originate outside the enterprise perimeter. Best practices 
   recommend that systems that are connected to the Internet have a minimal 
   number of ports exposed.

   This security update is rated Critical for all supported editions of 
   Microsoft Windows 2000, Windows XP, and Windows Server 2003, and Moderate 
   for all supported editions of Windows Vista, and Windows Server 2008.

   The security update addresses the vulnerabilities by validating the fields 
   inside the SMB packets.

   Recommendation. Microsoft recommends that customers apply the update 
   immediately.

Affected Software

   Microsoft Windows 2000 Service Pack 4
   Windows XP Service Pack 2 and Windows XP Service Pack 3
   Windows XP Professional x64 Edition and Windows XP Professional x64 
     Edition Service Pack 2
   Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2
   Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition 
     Service Pack 2
   Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 
     2003 with SP2 for Itanium-based Systems
   Windows Vista and Windows Vista Service Pack 1
   Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1
   Windows Server 2008 for 32-bit Systems*
   Windows Server 2008 for x64-based Systems*
   Windows Server 2008 for Itanium-based Systems

   *Windows Server 2008 server core installation affected.

Vulnerability Information

SMB Validation Denial of Service Vulnerability - CVE-2008-4114

   A denial of service vulnerability exists in the way that Microsoft 
   Server Message Block (SMB) Protocol software handles specially crafted 
   SMB packets. An attempt to exploit the vulnerability would not require 
   authentication, allowing an attacker to exploit the vulnerability by 
   sending a specially crafted network message to a computer running the 
   Server service. An attacker who successfully exploited this vulnerability 
   could cause the computer to stop responding and restart.

SMB Buffer Overflow Remote Code Execution Vulnerability - CVE-2008-4834

   An unauthenticated remote code execution vulnerability exists in the way 
   that Microsoft Server Message Block (SMB) Protocol software handles 
   specially crafted SMB packets. An attempt to exploit the vulnerability 
   would not require authentication, allowing an attacker to exploit the 
   vulnerability by sending a specially crafted network message to a 
   computer running the Server service. An attacker who successfully 
   exploited this vulnerability could take complete control of the system. 
   Most attempts to exploit this vulnerability would result in a system 
   denial of service condition, however remote code execution is 
   theoretically possible.

SMB Validation Remote Code Execution Vulnerability - CVE-2008-4835

   An unauthenticated remote code execution vulnerability exists in the way 
   that Microsoft Server Message Block (SMB) Protocol software handles 
   specially crafted SMB packets. An attempt to exploit the vulnerability 
   would not require authentication, allowing an attacker to exploit the 
   vulnerability by sending a specially crafted network message to a 
   computer running the Server service. An attacker who successfully 
   exploited this vulnerability could cause the attacker to take complete 
   control of the system. Most attempts to exploit this vulnerability would 
   result in a system denial of service condition, however remote code 
   execution is theoretically possible.

- --------------------------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:

        http://www.auscert.org.au/render.html?cid=1980

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.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBSW0lSih9+71yA2DNAQISygP+Jg3N67wFEd7JETLXi2gQGNmZeTb32spq
QYi5Mj25jDU5hmtgwxnW91pa1X9MTEnkDKvgwVlIVKP8UK6A/+nxzWDfEexJxEcI
c+MOhNZuph7Tctno5VFGpLwsZV3Pbstesi/Gt2JnEuDl8G0+BDrCuJp2SgLqx/tW
XJHeYfQ43g0=
=GFnG
-----END PGP SIGNATURE-----