PT-2008-09: Microsoft Windows MSMQ Privilege Escalation Vulnerability
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