[Full-disclosure] [ GLSA 200601-04 ] VMware Workstation: Vulnerability in NAT networking

[Sune Kloppenborg Jeppesen]

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Gentoo Linux Security Advisory                           GLSA 200601-04
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                                            http://security.gentoo.org/
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  Severity: High
     Title: VMware Workstation: Vulnerability in NAT networking
      Date: January 07, 2006
      Bugs: #116238
        ID: 200601-04

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Synopsis
========

VMware guest operating systems can execute arbitrary code with elevated
privileges on the host operating system through a flaw in NAT
networking.

Background
==========

VMware Workstation is a powerful virtual machine for developers and
system administrators.

Affected packages
=================

    -------------------------------------------------------------------
     Package             /    Vulnerable    /               Unaffected
    -------------------------------------------------------------------
  1  vmware-workstation      < 5.5.1.19175              >= 5.5.1.19175
                                                       *>= 4.5.3.19414

Description
===========

Tim Shelton discovered that vmnet-natd, the host module providing
NAT-style networking for VMware guest operating systems, is unable to
process incorrect 'EPRT' and 'PORT' FTP requests.

Impact
======

Malicious guest operating systems using the NAT networking feature or
local VMware Workstation users could exploit this vulnerability to
execute arbitrary code on the host system with elevated privileges.

Workaround
==========

Disable the NAT service by following the instructions at
http://www.vmware.com/support/kb, Answer ID 2002.

Resolution
==========

All VMware Workstation users should upgrade to a fixed version:

    # emerge --sync
    # emerge --ask --oneshot --verbose app-emulation/vmware-workstation

References
==========

  [ 1 ] CVE-2005-4459
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4459
  [ 2 ] VMware Security Response
        http://www.vmware.com/support/kb/enduser/std_adp.php?p_faqid=2000

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200601-04.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security at gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0
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