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Category:   OS (Microsoft)  >   Microsoft Message Queuing (MSMQ) Vendors:   Microsoft
Windows Message Queuing Service (MSMQ) NULL Pointer Flaw Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1022714
SecurityTracker URL:
CVE Reference:   CVE-2009-1922   (Links to External Site)
Date:  Aug 11 2009
Impact:   Execution of arbitrary code via local system, Root access via local system
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 Message Queuing Service (MSMQ). A local user can obtain elevated privileges on the target system.

A local user can send a specially crafted IOCTL request to the Message Queuing service to trigger a null pointer flaw and execute arbitrary commands on the target system with elevated privileges. The code will run with Local System privileges.

Nikita Tarakanov of Positive Technologies Research Team reported this vulnerability.

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

Microsoft Windows 2000 Service Pack 4:

Windows XP Service Pack 2:

Windows XP Professional x64 Edition Service Pack 2:

Windows Server 2003 Service Pack 2:

Windows Server 2003 x64 Edition Service Pack 2:

Windows Server 2003 with SP2 for Itanium-based Systems:

Windows Vista:

Windows Vista x64 Edition:

A restart is required.

The Microsoft advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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