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Microsoft Windows Internet Naming Service Buffer Overflow Vulnerability

Risk
High

Date Discovered
02-10-2004

Description
The Microsoft Windows Internet Name Service (WINS) is prone to a remotely exploitable buffer overflow condition. Sending a series of specially crafted packets to the service could cause it to fail. On some Windows platforms, this could also lead to execution of arbitrary code.

Symantec Enterprise Firewall 7.0.x and Symantec VelociRaptor 1.5
By default, Symantec's full application inspection firewall technology protects against this Microsoft vulnerability. No additional configuration or patch is required.

Symantec Enterprise Security Manager
Symantec Enterprise Security Manager™ posted an update to the OS Patch Policy that detects and reports systems that are not patched against this vulnerability. Click here for the advisory released February 10, 2004.

Symantec Host IDS 4.1.1
An update for Symantec Host IDS 4.1.1 to detect attempts to exploit this vulnerability was released on February 11, 2004. Symantec Host IDS users can run LiveUpdate or download the latest Security Update here to ensure protection against this threat.

Symantec Intruder Alert 3.6
Users of Symantec Intruder Alert 3.6 can download a policy containing a rule that detects attempts to exploit this vulnerability. Click here for more information.

Symantec Gateway Security 1.0
Symantec's full application inspection firewall component:  Protected by default.  No additional configuration or patch is required for the WINS Buffer Overflow vulnerability.
IDS component:  An update for Symantec Gateway Security to detect attempts to exploit this vulnerability is available. Symantec Gateway Security users should run LiveUpdate to ensure protection against this threat.

Symantec Gateway Security 2.0
Symantec's full application inspection firewall component:  Protected by default.  No additional configuration or patch is required for the WINS Buffer Overflow vulnerability.
IDS component:  UAn update for Symantec Gateway Security to detect attempts to exploit this vulnerability is available. Symantec Gateway Security users should run LiveUpdate to ensure protection against this threat.

Symantec ManHunt 3.0
Users of Symantec Manhunt 3.0 can update to the latest Security Update to detect attempts to exploit this vulnerability. Click here for more information.

Symantec Vulnerability Assessment
Symantec Vulnerability Assessment detects and reports this vulnerability. Click here for the advisory released February 10, 2004.

Symantec Enterprise Security Manager Network Assessment Module
Symantec Enterprise Security Manager Network Assessment Module detects and reports this vulnerability. Click here for the advisory released August 9, 2005.

Components Affected
Microsoft Windows 2000 Advanced Server SP4
Microsoft Windows 2000 Advanced Server SP3
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Server SP4
Microsoft Windows 2000 Server SP3
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server
Microsoft Windows NT Enterprise Server 4.0 SP6a
Microsoft Windows NT Enterprise Server 4.0 SP6
Microsoft Windows NT Enterprise Server 4.0 SP5
Microsoft Windows NT Enterprise Server 4.0 SP4
Microsoft Windows NT Enterprise Server 4.0 SP3
Microsoft Windows NT Enterprise Server 4.0 SP2
Microsoft Windows NT Enterprise Server 4.0 SP1
Microsoft Windows NT Enterprise Server 4.0
Microsoft Windows NT Server 4.0 SP6a
Microsoft Windows NT Server 4.0 SP6
Microsoft Windows NT Server 4.0 SP5
Microsoft Windows NT Server 4.0 SP4
Microsoft Windows NT Server 4.0 SP3
Microsoft Windows NT Server 4.0 SP2
Microsoft Windows NT Server 4.0 SP1
Microsoft Windows NT Server 4.0
Microsoft Windows NT Terminal Server 4.0 SP6
Microsoft Windows NT Terminal Server 4.0 SP5
Microsoft Windows NT Terminal Server 4.0 SP4
Microsoft Windows NT Terminal Server 4.0 SP3
Microsoft Windows NT Terminal Server 4.0 SP2
Microsoft Windows NT Terminal Server 4.0 SP1
Microsoft Windows NT Terminal Server 4.0
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Datacenter Edition 64-bit
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Enterprise Edition 64-bit
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition

Recommendations
Block external access at the network boundary, unless service is required by external parties.
Block access to the WINS service at the network boundary. This service typically runs on TCP port 42 by default.

Microsoft has released patches to fix this issue:

Microsoft Windows 2000 Advanced Server SP4:

Microsoft Patch Security Update for Microsoft Windows 2000: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=FD38BD3F-2E56-45B8-B8B2-C5C798B0E70D&displaylang=en

Microsoft Windows 2000 Advanced Server SP3:
Microsoft Patch Security Update for Microsoft Windows 2000: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=FD38BD3F-2E56-45B8-B8B2-C5C798B0E70D&displaylang=en

Microsoft Windows 2000 Advanced Server SP2:
Microsoft Patch Security Update for Microsoft Windows 2000: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=FD38BD3F-2E56-45B8-B8B2-C5C798B0E70D&displaylang=en

Microsoft Windows 2000 Advanced Server SP1:
Microsoft Windows 2000 Advanced Server :
Microsoft Windows 2000 Server SP4:
Microsoft Patch Security Update for Microsoft Windows 2000: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=FD38BD3F-2E56-45B8-B8B2-C5C798B0E70D&displaylang=en

Microsoft Windows 2000 Server SP3:
Microsoft Patch Security Update for Microsoft Windows 2000: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=FD38BD3F-2E56-45B8-B8B2-C5C798B0E70D&displaylang=en

Microsoft Windows 2000 Server SP2:
Microsoft Patch Security Update for Microsoft Windows 2000: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=FD38BD3F-2E56-45B8-B8B2-C5C798B0E70D&displaylang=en

Microsoft Windows 2000 Server SP1:
Microsoft Windows 2000 Server :
Microsoft Windows NT Enterprise Server 4.0 SP6a:
Microsoft Patch Security Update for Microsoft Windows NT Server 4.0: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=67F91E33-E2EC-4CE9-B55B-509240B1A973&displaylang=en

Microsoft Windows NT Enterprise Server 4.0 SP6:
Microsoft Windows NT Enterprise Server 4.0 SP5:
Microsoft Windows NT Enterprise Server 4.0 SP4:
Microsoft Windows NT Enterprise Server 4.0 SP3:
Microsoft Windows NT Enterprise Server 4.0 SP2:
Microsoft Windows NT Enterprise Server 4.0 SP1:
Microsoft Windows NT Enterprise Server 4.0:
Microsoft Windows NT Server 4.0 SP6a:
Microsoft Patch Security Update for Microsoft Windows NT Server 4.0: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=67F91E33-E2EC-4CE9-B55B-509240B1A973&displaylang=en

Microsoft Windows NT Server 4.0 SP6:
Microsoft Windows NT Server 4.0 SP5:
Microsoft Windows NT Server 4.0 SP4:
Microsoft Windows NT Server 4.0 SP3:
Microsoft Windows NT Server 4.0 SP2:
Microsoft Windows NT Server 4.0 SP1:
Microsoft Windows NT Server 4.0:
Microsoft Windows NT Terminal Server 4.0 SP6:
Microsoft Patch Security Update for Microsoft Windows NT Server Terminal Server Edition: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=FCAF39A9-73BD-4B7F-9DC1-ACED9FE61852&displaylang=en

Microsoft Windows NT Terminal Server 4.0 SP5:
Microsoft Windows NT Terminal Server 4.0 SP4:
Microsoft Windows NT Terminal Server 4.0 SP3:
Microsoft Windows NT Terminal Server 4.0 SP2:
Microsoft Windows NT Terminal Server 4.0 SP1:
Microsoft Windows NT Terminal Server 4.0:
Microsoft Windows Server 2003 Datacenter Edition :
Microsoft Windows Server 2003 Datacenter Edition 64-bit :
Microsoft Windows Server 2003 Enterprise Edition :
Microsoft Patch Security Update for Microsoft Windows Server 2003: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=AA95192E-5B0B-45F0-B4AE-E228B0625F2D&displaylang=en

Microsoft Windows Server 2003 Enterprise Edition 64-bit :
Microsoft Patch Security Update for Microsoft Windows Server 2003 64-bit Edition: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=6FD30C00-8D60-4CFD-A115-3708138F5B00&displaylang=en

Microsoft Windows Server 2003 Standard Edition :
Microsoft Patch Security Update for Microsoft Windows Server 2003: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=AA95192E-5B0B-45F0-B4AE-E228B0625F2D&displaylang=en

Microsoft Windows Server 2003 Web Edition :
Microsoft Patch Security Update for Microsoft Windows Server 2003: KB830352
http://www.microsoft.com/downloads/details.aspx?FamilyId=AA95192E-5B0B-45F0-B4AE-E228B0625F2D&displaylang=en

References
Source: Microsoft Security Bulletin MS04-006
URL: http://www.microsoft.com/technet/treeview/default.asp?url=/technet/security/bulletin/MS04-006.asp

Credits
Discovery credited to Qualys.


Copyright (c) 2004 by Symantec Corp.
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