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VMware Security Advisory 2013-0010

VMware Security Advisory 2013-0010
Posted Aug 23, 2013
Authored by VMware | Site vmware.com

VMware Security Advisory 2013-0010 - VMware Workstation and VMware Player address a vulnerability in the vmware-mount component which could result in a privilege escalation on linux-based host machines.

tags | advisory
systems | linux
advisories | CVE-2013-1662
MD5 | d8abf50142599d6998f008ebf1b8cb47

VMware Security Advisory 2013-0010

Change Mirror Download
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- -----------------------------------------------------------------------
VMware Security Advisory

Advisory ID: VMSA-2013-0010
Synopsis: VMware Workstation host privilege escalation vulnerability
Issue date: 2013-08-22
Updated on: 2013-08-22 (initial advisory)
CVE numbers: CVE-2013-1662

- ------------------------------------------------------------------------

1. Summary

VMware Workstation and VMware Player address a vulnerability in the
vmware-mount component which could result in a privilege escalation
on linux-based host machines.

2. Relevant releases

VMware Workstation 9.x
VMware Workstation 8.x

VMware Player 5.x
VMware Player 4.x

3. Problem Description

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.

Workaround
A workaround for the issue is to remove the setuid bit from
vmware-mount:

# chmod u-s /usr/bin/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.

VMware Product Running Replace with/
Product Version on Apply Patch
============= ======= ======= =================
Workstation 9.x Linux * See section 4. Solution
Workstation 8.x Linux * See section 4. Solution

Player 4.x Linux * See section 4. Solution
Player 5.x Linux * See section 4. Solution

Fusion any Mac/OS Not affected

ESXi any ESXi Not affected

ESX any ESX Not affected

* The issue is present if Workstation or Player is installed on a
Debian-based version of Linux (e.g. Ubuntu).

4. Solution

Please review the patch/release notes for your product and version
and verify the checksum of your downloaded file.

VMware Workstation 9.x, 8.x
---------------------------
https://www.vmware.com/go/downloadworkstation

To remediate the issue, replace /usr/bin/vmware-mount on the host
with a fixed version present in the Drivers and Tools tab of the
download page for Workstation listed above.

VMware Player 5.x, 4.x
---------------------------
https://www.vmware.com/go/downloadplayer

To remediate the issue, replace /usr/bin/vmware-mount on the host
with a fixed version present in the Drivers and Tools tab of the
download page for Player listed above.

5. References

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1662


- -----------------------------------------------------------------------

6. Change log

2013-08-22 VMSA-2013-0010
Initial security advisory in conjunction with the release of
an updated version of vmware-mount for Workstation 8 and
Workstation 9 and Player 4 and Player 5.

-----------------------------------------------------------------------

7. Contact

E-mail list for product security notifications and announcements:
http://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce

This Security Advisory is posted to the following lists:

* security-announce at lists.vmware.com
* bugtraq at securityfocus.com
* full-disclosure at lists.grok.org.uk

E-mail: security at vmware.com
PGP key at: http://kb.vmware.com/kb/1055

VMware Security Advisories
http://www.vmware.com/security/advisories

VMware security response policy
http://www.vmware.com/support/policies/security_response.html

General support life cycle policy
http://www.vmware.com/support/policies/eos.html

VMware Infrastructure support life cycle policy
http://www.vmware.com/support/policies/eos_vi.html

Copyright 2013 VMware Inc. All rights reserved.

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