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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Windows DNS Client Lets Remote Users Spoof the System
SecurityTracker Alert ID:  1019802
SecurityTracker URL:  http://securitytracker.com/id/1019802
CVE Reference:   CVE-2008-0087   (Links to External Site)
Date:  Apr 8 2008
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2000 SP4, 2003 SP2, XP SP2, Vista; and prior service packs
Description:   A vulnerability was reported in the Windows DNS Client. A remote user can spoof the target user's DNS.

A remote user can send specially crafted data in response to the target user's DNS request to cause the target user's traffic to be directed to an arbitrary location.

Amit Klein of Trusteer, Alla Berzroutchko of Scanit, and Roy Arends of Nominet UK reported this vulnerability.

Impact:   A remote user can conduct DNS spoofing attacks against the target user's system.
Solution:   The vendor has issued the following fixes:

Microsoft Windows 2000 Service Pack 4:

http://www.microsoft.com/downloads/details.aspx?FamilyId=41326ade-96b6-47ce-9291-d4e3039471c4

Windows XP Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?FamilyID=893f4cef-0395-4c44-ba28-7a10b6e7dd48

Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?FamilyID=8fdd1207-6e93-4c43-bacc-fe3623a6ebe7

Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?FamilyId=214bd8f5-6eb2-414c-b013-c516a306d692

Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?FamilyId=fd123394-a5d6-4b55-be74-2938f52ce922

Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems:

http://www.microsoft.com/downloads/details.aspx?FamilyId=e0e63f03-904d-47ee-94fc-51a8dea668eb

Windows Vista:

http://www.microsoft.com/downloads/details.aspx?FamilyID=8203d303-c855-4579-9bbf-b06ddf5c1b87

Windows Vista x64 Edition:

http://www.microsoft.com/downloads/details.aspx?FamilyID=73f3a234-3973-4467-be7e-69efa7ee978c

A restart is required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms08-020.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms08-020.mspx (Links to External Site)
Cause:   Authentication error

Message History:   None.


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