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             AUSCERT External Security Bulletin Redistribution

                          ESB-2008.0674 -- [Win]
           MS08-037 Vulnerabilities in DNS could allow spoofing
                                9 July 2008

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

Product:              Microsoft Windows 2000 Server SP 4
                      Microsoft Windows 2000 SP 4
                      Microsoft Windows XP SP 2 and SP 3
                      Microsoft Windows Server 2003 SP 1 and SP 2
                      Microsoft Windows Server 2008
Publisher:            Microsoft
Operating System:     Windows
Impact:               Provide Misleading Information
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-1447 CVE-2008-1454

Ref:                  AL-2008.0080

Original Bulletin:  
  http://www.microsoft.com/technet/security/bulletin/ms08-037.mspx

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Microsoft Security Bulletin MS08-037 Important

This security update resolves two privately reported vulnerabilities in the 
Windows Domain Name System (DNS) that could allow spoofing. These 
vulnerabilities exist in both the DNS client and DNS server and could allow a 
remote attacker to redirect network traffic intended for systems on the 
Internet to the attacker’s own systems.

This security update is rated Important for all supported editions of Microsoft 
Windows 2000, Windows XP, Windows Server 2003, and Windows Server 2008. For more
information, see the subsection, Affected and Non-Affected Software, in this 
section.

The security update addresses the vulnerabilities by using strongly random DNS 
transaction IDs, using random sockets for UDP queries, and updating the logic
used to manage the DNS cache. For more information about the vulnerability, 
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 at the earliest
opportunity.

Known Issues.

Microsoft Knowledge Base Article 953230 documents the currently known issues 
that customers may experience when they install this security update.

Affected Software: 

    - DNS client update for Microsoft Windows 2000 Service Pack 4
    - DNS Server update for Microsoft Windows 2000 Server Service
      Pack 4
    - DNS client update for Windows XP Service Pack 2 and 
      Windows XP Service Pack 3
    - DNS client update for Windows XP Professional x64 Edition and
      Windows XP Professional x64 Edition Service Pack 2
    - DNS client update for Windows Server 2003 Service Pack 1 and
      Windows Server 2003 Service Pack 2
    - DNS server update for Windows Server 2003 Service Pack 1 and
      Windows Server 2003 Service Pack 2
    - DNS client update for Windows Server 2003 x64 Edition and 
      Windows Server 2003 x64 Edition Service Pack 2
    - DNS server update for Windows Server 2003 x64 Edition and 
      Windows Server 2003 x64 Edition Service Pack 2
    - DNS client update for Windows Server 2003 with SP1 for 
      Itanium-based Systems and
      Windows Server 2003 with SP2 for Itanium-based Systems
    - DNS server update for Windows Server 2003 with SP1 for 
      Itanium-based Systems and
      Windows Server 2003 with SP2 for Itanium-based Systems
    - DNS server update for Windows Server 2008 for 32-bit Systems
      (Windows Server 2008 Server Core installation affected)
    - DNS server update for Windows Server 2008 for x64-based
      Systems (Windows Server 2008 Server Core installation affected)

Non-Affected Software:

    - Windows Vista and Windows Vista Service Pack 1
    - Windows Vista x64 Edition and Windows Vista x64 Edition Service Pack 1
    - Windows Server 2008 for Itanium-based Systems

Vulnerability Information

DNS Insufficient Socket Entropy Vulnerability - CVE-2008-1447

A spoofing vulnerability exists in Windows DNS client and Windows DNS server.
This vulnerability could allow a remote unauthenticated attacker to quickly 
and reliably spoof responses and insert records into the DNS server or client 
cache, thereby redirecting Internet traffic.

	
DNS Cache Poisoning Vulnerability - CVE-2008-1454

A cache poisoning vulnerability exists in Windows DNS Server. The 
vulnerability could allow an unauthenticated remote attacker to send specially 
crafted responses to DNS requests made by vulnerable systems, thereby 
poisoning the DNS cache and redirecting Internet traffic from legitimate 
locations.

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        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
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