Attacks/Breaches
10/31/2012
07:45 PM
50%
50%

Automation Demands Tighter VM Security

Plan to let hypervisors spin up new virtual machines on their own? Then you'd better lock them down.

From a security standpoint, basic server hypervisors have a lot of intrinsic strength. They work at a very low level within a given piece of hardware. They're hardened and task-specific, and the code base is relatively small. And it's a good thing, because the hypervisor enjoys a privileged degree of access to guest operating systems, especially via OS-native virtual machine tools, which allow the hypervisor all sorts of power. Compromising the hypervisor gives complete and total access to all of the data structures that comprise the system itself. But when we asked about hypervisor security, only 64% of respondents to our survey cited concern about this issue. That leaves a staggering 36%--greater than one-third of respondents--who have their heads in the sand. If a system runs code, it can be compromised, and if that code is running everywhere, there's a huge incentive to break it. There have been no fewer than 10 major hypervisor vulnerabilities disclosed this year alone, affecting a variety of platforms. Exploits range from remote code execution vulnerabilities (the most severe) to denial of service, and while VMware has yet to disclose a remote code execution vulnerability, it's only a matter of time. Earlier this year, for example, outdated source code for VMware's ESX hypervisor was posted.

We still see companies with a long way to go to integrate hypervisor awareness into their overall security mandates. The good news is that vendors have been preparing for this eventuality for some time, as we discuss in our full report. Also, about half of survey respondents (48%) have a hypervisor-aware security product in place. An additional 32% plan to adopt one.

Go to the main story:
A Shaky Virtual Stack

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-2174
Published: 2015-05-24
Cisco TelePresence T, TelePresence TE, and TelePresence TC before 7.1 do not properly implement access control, which allows remote attackers to obtain root privileges by sending packets on the local network and allows physically proximate attackers to obtain root privileges via unspecified vectors,...

CVE-2015-0713
Published: 2015-05-24
The web framework in Cisco TelePresence Advanced Media Gateway Series Software before 1.1(1.40), Cisco TelePresence IP Gateway Series Software, Cisco TelePresence IP VCR Series Software before 3.0(1.27), Cisco TelePresence ISDN Gateway Software before 2.2(1.94), Cisco TelePresence MCU Software befor...

CVE-2015-0722
Published: 2015-05-24
The network drivers in Cisco TelePresence T, Cisco TelePresence TE, and Cisco TelePresence TC before 7.3.2 allow remote attackers to cause a denial of service (process restart or device reload) via a flood of crafted IP packets, aka Bug ID CSCuj68952.

CVE-2015-1894
Published: 2015-05-24
Cross-site request forgery (CSRF) vulnerability in IBM InfoSphere Optim Workload Replay 2.x before 2.1.0.3 allows remote attackers to hijack the authentication of arbitrary users for requests that insert XSS sequences.

CVE-2015-1895
Published: 2015-05-24
IBM InfoSphere Optim Workload Replay 2.x before 2.1.0.3 relies on client-side code to verify authorization, which allows remote attackers to bypass intended access restrictions by modifying the client behavior.

Dark Reading Radio
Archived Dark Reading Radio
Join security and risk expert John Pironti and Dark Reading Editor-in-Chief Tim Wilson for a live online discussion of the sea-changing shift in security strategy and the many ways it is affecting IT and business.