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ESB-2006.0408 -- [Win] -- MS06-031 - Vulnerability in RPC Mutual Authentication Could Allow Spoofing

Date: 14 June 2006

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             AUSCERT External Security Bulletin Redistribution

                          ESB-2006.0408 -- [Win]
MS06-031 - Vulnerability in RPC Mutual Authentication Could Allow Spoofing
                               14 June 2006

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Publisher:            Microsoft
Operating System:     Windows 2000 SP4 and prior
Impact:               Reduced Security
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-2380

Original Bulletin:    
  http://www.microsoft.com/technet/security/bulletin/ms06-031.mspx

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

MS06-031 - Vulnerability in RPC Mutual Authentication Could 
Allow Spoofing (917736)

Affected Software:
	 - Microsoft Windows 2000 Service Pack 4  Download the update

Non-Affected Software:
	 - Microsoft Windows XP Service Pack 1 and Microsoft Windows XP Service Pack 2
	 - Microsoft Windows XP Professional x64 Edition
	 - Microsoft Windows Server 2003 and Microsoft Windows Server 2003 Service Pack 1
	 - Microsoft Windows Server 2003 for Itanium-based Systems 
	   and Microsoft Windows Server 2003 with SP1 for Itanium-based Systems
	 - Microsoft Windows Server 2003 x64 Edition
	 - Microsoft Windows 98, Microsoft Windows 98 Second Edition (SE), 
	   and Microsoft Windows Millennium Edition (Me)

Full MS06-031 advisory:
http://www.microsoft.com/technet/security/bulletin/ms06-031.mspx

Vulnerability Details

RPC Mutual Authentication Vulnerability - CVE-2006-2380

	There is a spoofing vulnerability in the way that RPC handles mutual
	authentication. This vulnerability could allow an attacker to persuade
	a user to connect to a malicious RPC server which appears to be valid.

- --------------------------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.
===========================================================================

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