Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Risk

2/25/2008
11:01 AM
George V. Hulme
George V. Hulme
Commentary
50%
50%

Virtualization: Just Another Layer Of Software To Patch?

Researchers at Core Security have issued an advisory warning users of a significant security flaw in a number of VMware desktop apps that could allow attackers to gain complete access to the underlying operating system.

Researchers at Core Security have issued an advisory warning users of a significant security flaw in a number of VMware desktop apps that could allow attackers to gain complete access to the underlying operating system."What's most relevant about this vulnerability is it demonstrates how virtual environments can provide an open door to the underlying infrastructures that host them," said Iván Arce, CTO at Core Security Technologies, in a statement.

The vulnerability affects VMware Workstation, Player, and ACE software. It is only exploitable when Shared Folders are enabled -- which is a default setting -- and at least one folder on the Host system is configured for sharing.

For enterprise users, this flaw doesn't affect VMWare's level 1 virtualization platforms, such as ESX. But on Thursday, the virtualization software maker did release a handful of vulnerabilities that do affect ESX. These flaws enable you to gain access to data and bypass security controls.

One of the first software applications I installed when I bought a MacBook Pro last summer was Parallels. After the initial amazement of running my Windows apps on my Mac wore off, I uninstalled it. I had quickly realized the level of complexity -- and risk -- I was bringing to my primary OS X operating system.

I'm much happier with Boot Camp. It runs at native speed. It doesn't hang. And I can harden it down and not worry, should it become comprised, that my primary OS also is at risk.

As for the current VMware flaw, Core Security recommends the following remedial actions:

  • Disable Shared Folders for all virtual machines that use the feature.

  • If the Shared Folders feature is required, configure it for read-only access.

  • If the Shared Folders feature is required, implement appropriate file system monitoring and access control mechanisms on the Host operating system.

  • Upgrade your VMware software to a nonvulnerable version.
  • (Don't you always just appreciate it when vendors suggest you UPGRADE your way out of a vulnerability?)

    Comment  | 
    Print  | 
    More Insights
    Comments
    Newest First  |  Oldest First  |  Threaded View
    DevSecOps: The Answer to the Cloud Security Skills Gap
    Lamont Orange, Chief Information Security Officer at Netskope,  11/15/2019
    Attackers' Costs Increasing as Businesses Focus on Security
    Robert Lemos, Contributing Writer,  11/15/2019
    Human Nature vs. AI: A False Dichotomy?
    John McClurg, Sr. VP & CISO, BlackBerry,  11/18/2019
    Register for Dark Reading Newsletters
    White Papers
    Video
    Cartoon Contest
    Write a Caption, Win a Starbucks Card! Click Here
    Latest Comment: -when I told you that our cyber-defense was from another age
    Current Issue
    Navigating the Deluge of Security Data
    In this Tech Digest, Dark Reading shares the experiences of some top security practitioners as they navigate volumes of security data. We examine some examples of how enterprises can cull this data to find the clues they need.
    Flash Poll
    Rethinking Enterprise Data Defense
    Rethinking Enterprise Data Defense
    Frustrated with recurring intrusions and breaches, cybersecurity professionals are questioning some of the industrys conventional wisdom. Heres a look at what theyre thinking about.
    Twitter Feed
    Dark Reading - Bug Report
    Bug Report
    Enterprise Vulnerabilities
    From DHS/US-CERT's National Vulnerability Database
    CVE-2019-15073
    PUBLISHED: 2019-11-20
    An Open Redirect vulnerability for all browsers in MAIL2000 through version 6.0 and 7.0, which will redirect to a malicious site without authentication. This vulnerability affects many mail system of governments, organizations, companies and universities.
    CVE-2019-15072
    PUBLISHED: 2019-11-20
    The login feature in "/cgi-bin/portal" in MAIL2000 through version 6.0 and 7.0 has a cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code via any parameter. This vulnerability affects many mail system of governments, organizations, companies and universities.
    CVE-2019-15071
    PUBLISHED: 2019-11-20
    The "/cgi-bin/go" page in MAIL2000 through version 6.0 and 7.0 has a cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code via ACTION parameter without authentication. The code can executed for any user accessing the page. This vulnerability affects many mail syste...
    CVE-2019-6176
    PUBLISHED: 2019-11-20
    A potential vulnerability reported in ThinkPad USB-C Dock Firmware version 3.7.2 may allow a denial of service.
    CVE-2019-6184
    PUBLISHED: 2019-11-20
    A potential vulnerability in the discontinued Customer Engagement Service (CCSDK) software version 2.0.21.1 may allow local privilege escalation.