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Category:   OS (Microsoft)  >   Microsoft Local Security Authority Subsystem Service (LSASS) Vendors:   Microsoft
Microsoft Local Security Authority Subsystem Service (LSASS) Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1025049
SecurityTracker URL:  http://securitytracker.com/id/1025049
CVE Reference:   CVE-2011-0039   (Links to External Site)
Date:  Feb 9 2011
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): XP SP3, 2003 SP2; and prior service packs
Description:   A vulnerability was reported in Microsoft Local Security Authority Subsystem Service (LSASS). A local user can obtain elevated privileges on the target system.

A local user can send a specially crafted authentication request to execute arbitrary code on the target system with elevated privileges.

Jorge Moura of Primavera BSS reported this vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor has issued the following fixes:

Windows XP Service Pack 3:

http://www.microsoft.com/downloads/details.aspx?familyid=541F228F-79B3-402A-8FF9-366C1E595227

Windows XP Professional x64 Edition Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=82189BF2-3F34-4949-92DA-EEA98036D18E

Windows Server 2003 Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=4E31E6B1-577E-468E-9C94-67227D2273C2

Windows Server 2003 x64 Edition Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=76E3C229-D812-433C-AD05-7CBD1F9C6A6D

Windows Server 2003 with SP2 for Itanium-based Systems:

http://www.microsoft.com/downloads/details.aspx?familyid=A0CDE8D8-7C85-4FCB-BCF7-205064970B41

A restart is required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms11-014.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms11-014.mspx (Links to External Site)
Cause:   Not specified

Message History:   None.


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