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Category:   Application (Generic)  >   Microsoft Virtual PC/Server Vendors:   Microsoft
Microsoft Virtual PC/Server Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1023720
SecurityTracker URL:
CVE Reference:   CVE-2010-1225   (Links to External Site)
Updated:  Apr 9 2010
Original Entry Date:  Mar 17 2010
Impact:   User access via local system
Vendor Confirmed:  Yes  
Version(s): Virtual PC 2007 SP1, Windows Virtual PC, Virtual Server 2005 R2 SP1; and prior service packs
Description:   A vulnerability was reported in Microsoft Virtual PC/Server. A local user can bypass certain security controls on the target guest operating system.

A local user on a guest operating system can exploit a flaw in the Virtual Machine Monitor (VMM) to potentially bypass Windows security mechanisms on the guest operating system, including Data Execution Prevention (DEP), Safe Structured Error Handling (SafeSEH), and Address Space Layout Randomization (ASLR).

Incorrect memory management in the VMM allows a local user-space processes in the guest operating system to gain access to portions of the VMM worker memory on the guest operating system.

Hyper-V is not affected.

Nicolas Economou from Core Security Technologies reported this vulnerability.

The original advisory is available at:

Impact:   A local user on a guest operating system can bypass certain security controls on the same guest operating system.
Solution:   No solution was available at the time of this entry.

The vendor plans to issue a fix in future updates to the product.

Vendor URL: (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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