a. VMware mount privilege escalation
VMware Workstation and Player contain a vulnerability in the handling of the vmware-mount command. A local malicious user may exploit this vulnerability to escalate their privileges to root on the host OS. The issue is present when Workstation or Player are installed on a Debian-based version of Linux.
The vulnerability does not allow for privilege escalation from the Guest Operating System to the host or vice-versa. This means that host memory can not be manipulated from the Guest Operating System.
A workaround for the issue is to remove the setuid bit from vmware-mount:
This workaround is relevant for both Workstation and Player.
VMware would like to thank Tavis Ormandy from the Google Security Team for reporting this issue to us.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-1662 to this issue.
Column 4 of the following table lists the action required to remediate the vulnerability in each release, if a solution is available.