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TITLE:
Microsoft Windows DNS Spoofing Vulnerabilities

SECUNIA ADVISORY ID:
SA30925

VERIFY ADVISORY:
http://secunia.com/advisories/30925/

CRITICAL:
Moderately critical

IMPACT:
Spoofing

WHERE:
>From remote

OPERATING SYSTEM:
Microsoft Windows 2000 Advanced Server
http://secunia.com/product/21/
Microsoft Windows 2000 Datacenter Server
http://secunia.com/product/1177/
Microsoft Windows 2000 Professional
http://secunia.com/product/1/
Microsoft Windows 2000 Server
http://secunia.com/product/20/
Microsoft Windows XP Home Edition
http://secunia.com/product/16/
Microsoft Windows XP Professional
http://secunia.com/product/22/
Microsoft Windows Server 2003 Datacenter Edition
http://secunia.com/product/1175/
Microsoft Windows Server 2003 Enterprise Edition
http://secunia.com/product/1174/
Microsoft Windows Server 2003 Standard Edition
http://secunia.com/product/1173/
Microsoft Windows Server 2003 Web Edition
http://secunia.com/product/1176/
Microsoft Windows Server 2008
http://secunia.com/product/18255/

DESCRIPTION:
Two vulnerabilities have been reported in Microsoft Windows, which
can be exploited by malicious people to poison the DNS cache.

1) An error in the Windows DNS client and Windows DNS server due to
insufficient socket entropy when performing DNS queries can be
exploited to poison the DNS cache.

2) An error in the Windows DNS server may cause it to accept records
from responses outside of the remote server's authority. This can be
exploited via specially crafted responses to DNS requests to poison
the DNS cache.

SOLUTION:
Apply patches.

-- DNS Client --

Windows 2000 SP4:
http://www.microsoft.com/downloads/details.aspx?familyid=269c219c-9d6b-4b12-b621-c70cd07cdd22

Windows XP SP2/SP3:
http://www.microsoft.com/downloads/details.aspx?familyid=ed989a33-7a9e-4423-93a8-b38907467cdf

Windows XP Professional x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/details.aspx?familyid=a2b016fa-b108-4e8e-b41b-4ca89002907b

Windows Server 2003 SP1/SP2:
http://www.microsoft.com/downloads/details.aspx?familyid=4ef5033c-9843-4e0b-bfad-fcaf05d7dab9

Windows Server 2003 x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/details.aspx?familyid=66624a1f-38bf-4af7-936d-3131474ffe1f

Windows Server 2003 SP1/SP2 for Itanium-based systems:
http://www.microsoft.com/downloads/details.aspx?familyid=facc80da-61d6-49c5-872d-a1980b66ae3e


-- DNS Server --

Windows 2000 Server SP4:
http://www.microsoft.com/downloads/details.aspx?familyid=332aa92f-a1ad-42a0-87d0-485d2d41335b

Windows Server 2003 SP1/SP2:
http://www.microsoft.com/downloads/details.aspx?familyid=d1fcb794-e6a5-4c28-b3b3-9cd88f468a42

Windows Server 2003 x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/details.aspx?familyid=040a1ba8-21b0-439e-bf21-1acd1c43b162

Windows Server 2003 SP1/SP2 for Itanium-based systems:
http://www.microsoft.com/downloads/details.aspx?familyid=c63e3ee6-6055-4313-b0f1-fec7408886bb

Windows Server 2008 for 32-bit Systems:
http://www.microsoft.com/downloads/details.aspx?familyid=1fcea8f4-b233-42e1-b913-c4fcae276c7b

Windows Server 2008 for x64-based Systems:
http://www.microsoft.com/downloads/details.aspx?familyid=afac5bbc-71fa-457b-8b0a-f5902d37bfd0

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Dan Kaminsky, IOActive.
2) Reported by the vendor.

ORIGINAL ADVISORY:
MS08-037 (KB953230):
http://www.microsoft.com/technet/security/Bulletin/MS08-037.mspx

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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