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

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

                       AL-2009.0013 -- AUSCERT ALERT
                                   [Win]
       MS09-003 - Vulnerabilities in Microsoft Exchange Could Allow
                           Remote Code Execution
                             18 February 2009

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

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

Product:              Exchange Server
Publisher:            Microsoft
Operating System:     Windows
Impact:               Administrator Compromise
                      Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-0099 CVE-2009-0098

Original Bulletin:    
  http://www.microsoft.com/technet/security/Bulletin/MS09-003.mspx

Revision History:     February 18 2009: Updated Affected software to 
                                        include Microsoft Exchange Server 
                                        MAPI Client and Collaboration Data 
                                        Objects 1.2.1
                      February 13 2009: Added CVE Reference
                      February 11 2009: Initial Release

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

Microsoft Security Bulletin MS09-003 - Critical

Vulnerabilities in Microsoft Exchange Could Allow Remote Code Execution 
  (959239)

   Published: February 10, 2009

   Version: 1.0

General Information

Executive Summary

   This security update resolves two privately reported vulnerabilities in 
   Microsoft Exchange Server. The first vulnerability could allow remote code 
   execution if a specially crafted TNEF message is sent to a Microsoft 
   Exchange Server. An attacker who successfully exploited this vulnerability 
   could take complete control of the affected system with Exchange Server 
   service account privileges. The second vulnerability could allow denial of 
   service if a specially crafted MAPI command is sent to a Microsoft Exchange 
   Server. An attacker who successfully exploited this vulnerability could 
   cause the Microsoft Exchange System Attendant service and other services 
   that use the EMSMDB32 provider to stop responding.

   This security update is rated Critical for all supported editions of 
   Microsoft Exchange 2000 Server, Microsoft Exchange Server 2003, and 
   Microsoft Exchange Server 2007. For more information, see the subsection, 
   Affected and Non-Affected Software, in this section.

   The security update addresses the vulnerabilities by modifying the way 
   Microsoft Exchange Server interprets TNEF messages and MAPI commands. For
   more information about the vulnerabilities, see the Frequently Asked 
   Questions (FAQ) subsection for the specific vulnerability entry under the 
   next section, Vulnerability Information.

    Recommendation. Microsoft recommends that customers apply the update 
    immediately. 

Affected Software

   Microsoft Exchange 2000 Server Service Pack 3 with the Update Rollup of 
     August 2004
   Microsoft Exchange Server 2003 Service Pack 2
   Microsoft Exchange Server 2007 Service Pack 1
   Microsoft Exchange Server MAPI Client and Collaboration Data Objects 1.2.1

Vulnerability Information

Memory Corruption Vulnerability - CVE-2009-0098

A remote code execution vulnerability exists in the way Microsoft Exchange 
Server decodes the Transport Neutral Encapsulation Format (TNEF) data for a 
message.

Literal Processing Vulnerability - CVE-2009-0099

A denial of service vulnerability exists in the EMSMDB2 (Electronic 
Messaging System Microsoft Data Base, 32 bit build) provider because of the 
way it handles invalid MAPI commands. An attacker could exploit the 
vulnerability by sending a specially crafted MAPI command to the application 
using the EMSMDB32 provider. An attacker who successfully exploited this 
vulnerability could cause the application to stop responding.

- --------------------------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

iD8DBQFJm2P1NVH5XJJInbgRAjRIAJ4heYyhZuF4G+T4rO79yrjabhgmeACfae6R
i+2osy6uRGJ1aSuWlr1/syU=
=NVDo
-----END PGP SIGNATURE-----