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Category:   OS (Microsoft)  >   WINS (Windows Internet Name Service) Vendors:   Microsoft
(Vendor Issues Fix) Microsoft WINS Memory Overwrite Lets Remote Users Execute Arbitary Code
SecurityTracker Alert ID:  1012516
SecurityTracker URL:  http://securitytracker.com/id/1012516
CVE Reference:   CVE-2004-1080   (Links to External Site)
Date:  Dec 14 2004
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): NT 4.0 SP6a, 2000 SP4, 2003; and prior service packs
Description:   A vulnerability was reported in Microsoft Windows in 'wins.exe'. A remote user can execute arbitrary code on the target system.

Nicolas Waisman from Immunity reported that a remote user can send a specially crafted WINS packet to the target server on TCP port 42 to modify a memory pointer and write arbitrary contents to arbitrary memory locations. A remote user can execute arbitrary code on the target system.

The original advisory is available at:

http://www.immunitysec.com/downloads/instantanea.pdf

Microsoft later reported that Windows 2000 SP3 and SP4, Windows XP SP1 and SP2, Windows XP 64-Bit Edition SP1, Windows XP 64-Bit Edition Version 2003, Windows 98, Windows 98 Second Edition (SE), and Windows Millennium Edition (ME) are not affected.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has released the following fixes.

Microsoft Windows NT Server 4.0 Service Pack 6a:

http://www.microsoft.com/downloads/details.aspx?FamilyId=38E9DB8C-5C43-4E9A-9DC9-97C2686A45F1

Microsoft Windows NT Server 4.0 Terminal Server Edition Service Pack 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=D7AB3F6F-26FE-4AE8-A07A-481D772D03A6

Microsoft Windows 2000 Server Service Pack 3 and Microsoft Windows 2000 Server Service Pack 4:

http://www.microsoft.com/downloads/details.aspx?FamilyId=40146B52-5546-489E-857E-01FE1EF709B2

Microsoft Windows Server 2003:

http://www.microsoft.com/downloads/details.aspx?FamilyId=10836F38-A38B-47D5-B87B-18D8E26EEFAA

Microsoft Windows Server 2003 64-Bit Edition:

http://www.microsoft.com/downloads/details.aspx?FamilyId=06CF9E85-C66D-4A7D-B2EB-99DE9423B60F

A restart is required in most cases.

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms04-045.mspx (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   This archive entry is a follow-up to the message listed below.
Nov 27 2004 Microsoft WINS Memory Overwrite Lets Remote Users Execute Arbitary Code



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