[PT-2008-09] Microsoft Windows MSMQ Privilege Escalation Vulnerability

["Valery Marchuk" <tecklord@xxxxxxxxxxxxxx>]

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        (PT-2008-09) Positive Technologies Security Advisory

        Microsoft Windows MSMQ Privilege Escalation Vulnerability

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---[ Affected Software ]

Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2
Windows Server 2003 Service Pack 2
Windows Vista

       Vendor Link:
              http://www.microsoft.com


---[ Severity Rating ]

       Severity:       High
       Impact:         Privilege Escalation
       Attack Vector:  Local

       CVSS v2:
              Base Score:     7.2
              Vector:         (AV:L/AC:M/Au:S/C:C/I:C/A:C)

       CVE:   CVE-2009-1922



---[ Vulnerability Description ]

Positive Technologies Research Team has discovered a privilege escalation 
vulnerability in Windows Message Queuing service (MSMQ).

The IOCTL handler in mqac.sys does not properly validate buffer data 
associated with the Irp object, which allows local users to crash the system 
or execute arbitrary code with SYSTEM privileges.


--[ Solution ]

Vendor has issued patches and advisory:
http://www.microsoft.com/technet/security/bulletin/ms09-040.mspx



--[ Disclosure Timeline ]

11/19/2008 - Vendor notified
11/21/2008 - Vendor response
08/11/2009 - Vendor released patches
08/12/2009 - Public disclosure


---[ Credits ]

This vulnerability was discovered by Nikita Tarakanov, Positive Technologies 
Research Team.


---[ References ]

http://en.securitylab.ru/lab/PT-2008-09
http://www.ptsecurity.ru/advisory.asp

Complete list of vulnerability reports published by Positive Technologies 
Research Team:

http://en.securitylab.ru/lab/
http://www.ptsecurity.ru/advisory.asp


---[ About Positive Technologies ]

Positive Technologies www.ptsecurity.com is among the key players in the IT 
security market in Russia.
The principal activities of the company include the development of 
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