PT-2008-05: VMware Multiple Products vmci.sys Privilege Escalation Vulnerability
Affected Software
VMware
Workstation 6.0.x, 6.5.x
VMware Player 2.0.x, 2.5.x
VMware ACE 2.0.x
VMware Server 2.x
Product Link:
http://www.vmware.com
Severity Rating
Severity: Medium
Impact: Priviliege Escalation
Attack Vector: Local
CVSS v2
Base Score: 6.6
Temporal Score: 5.2
Vector: (AV:L/AC:M/Au:S/C:C/I:C/A:C/E:P/RL:O/RC:C)
CVE: CVE-2009-1147
Vulnerability Description
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..
Solution
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.
Disclosure Timeline
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
Credits
This vulnerability was discovered by Nikita Tarakanov, Positive Technologies Research Team.
References
http://en.securitylab.ru/lab/PT-2008-05
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