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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.0029
          Vulnerability in Microsoft Windows Could Allow Security
                         Feature Bypass (2785220)
                              9 January 2013

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

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

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows Vista
                   Windows Server 2008
                   Windows 7
                   Windows Server 2008 R2
                   Windows 8
                   Windows Server 2012
                   Windows RT
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-0013  

Original Bulletin: 
   http://technet.microsoft.com/en-us/security/bulletin/ms13-006

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Microsoft Security Bulletin MS13-006 - Important

Vulnerability in Microsoft Windows Could Allow Security Feature Bypass 
(2785220)

Published Date: January 8, 2013

Version: 1.0

General Information

Executive Summary

This security update resolves a privately reported vulnerability in the 
implementation of SSL and TLS in Microsoft Windows. The vulnerability could 
allow security feature bypass if an attacker intercepts encrypted web traffic 
handshakes.

This security update is rated Important for all supported editions of Windows 
Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, 
Windows Server 2012, and Windows RT.

The security update addresses the vulnerability by modifying the way that the 
Windows SSL provider component handles encrypted network packets. 

Affected Software 

Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows 8 for 32-bit Systems
Windows 8 for 64-bit Systems
Windows Server 2012
Windows RT
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core 
installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core
installation) 
Windows Server 2008 R2 for x64-based Systems (Server Core installation) 
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core
installation) 
Windows Server 2012 (Server Core installation)

Vulnerability Information

Microsoft SSL Version 3 and TLS Protocol Security Feature Bypass Vulnerability 
- - CVE-2013-0013

A security feature bypass vulnerability exists in the way that the Microsoft 
Windows SSL/TLS (Secure Socket Layer and Transport Layer Security) handle the 
SSL version 3 (SSLv3) and TLS protocols. The vulnerability could allow 
security feature bypass if an attacker injects specially crafted content into 
an SSL/TLS session.

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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