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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Windows Netlogon Service Lets Remote Authenticated Users Deny Service
SecurityTracker Alert ID:  1024883
SecurityTracker URL:  http://securitytracker.com/id/1024883
CVE Reference:   CVE-2010-2742   (Links to External Site)
Date:  Dec 14 2010
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2003 SP2, 2008 SP2, 2008 R2; and prior service packs
Description:   A vulnerability was reported in the Windows Netlogon Service. A remote authenticated user can cause denial of service conditions.

A remote authenticated administrative user on a system that is joined to the same domain as the target domain controller can send a specially crafted Netlogon Remote Protocol RDP packet to cause the target system to restart.

Matthias Dieter Wallnofer and Andrew Bartlett of The Samba Team reported this vulnerability.

Impact:   A remote authenticated user can cause the target system to restart.
Solution:   The vendor has issued the following fixes:

Windows Server 2003 Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=AD843B97-2F6E-4406-A17A-627B7DB8A926

Windows Server 2003 x64 Edition Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=0B0A06E7-0AE5-41F4-9FF5-D524FC0AFBFA

Windows Server 2003 with SP2 for Itanium-based Systems:

http://www.microsoft.com/downloads/details.aspx?familyid=7C0C2850-E81D-4347-AEB3-47036CAA7C1B

Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=6793F75B-CDF4-42EF-A53E-A1ACB5B662D1

Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=85ADD876-CA5A-4A92-984E-188A72E349FC

Windows Server 2008 R2 for x64-based Systems:

http://www.microsoft.com/downloads/details.aspx?familyid=D7307AFD-84A0-434E-9658-BF9F8AE4B938

A restart is required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms10-101.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms10-101.mspx (Links to External Site)
Cause:   Input validation error
Underlying OS:  

Message History:   None.


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