PT-2008-05: VMware Multiple Products vmci.sys Privilege Escalation Vulnerability
Workstation 6.0.x, 6.5.x
VMware Player 2.0.x, 2.5.x
VMware ACE 2.0.x
VMware Server 2.x
Impact: Priviliege Escalation
Attack Vector: Local
Base Score: 6.6
Temporal Score: 5.2
Positive Technologies Research Team has discovered priviliege escalation vulnerabilities in VMware products.
The IOCTL handler in vmci.sys does not properly validate buffer data associated with the Irp object, which allows local users with administrative priviligies to gain SYSTEM privilieges..
Update to the latest product version: vmware.com.
Workstation 6.5.x Windows 6.5.2 build 156735 or later
Workstation 6.0.x Windows upgrade to at least 6.5.2
Player 2.5.x Windows 2.5.2 build 156735 or later
Player 2.0.x Windows upgrade to at least 2.5.2
ACE 2.5.x Windows 2.5.2 build 156735 or later
ACE 2.0.x Windows upgrade to at least 2.5.2
Server 2.x Windows 2.0.1 build 156745 or later
Refer to VMware KB article 1009826 on the steps that are needed to remediate this vulnerability on Windows-based hosts. This KB article is found at http://kb.vmware.com/kb/1009826.
10.14.2008 - Vendor notified
10.16.2008 - Vendor replied
10.16.2008 - Sent detailed information
04.03.2009 - Vendor released fixed versions
04.06.2009 - Public disclosure
This vulnerability was discovered by Nikita Tarakanov, Positive Technologies Research Team.
Complete list of vulnerability reports published by Positive Technologies Research Team: