How To Tackle Security Vulnerabilities In Hypervisor Based Cloud Servers

How To Tackle Security Vulnerabilities In Hypervisor Based Cloud Servers

Virtualization brings numerous security issues apart from the enormous benefits and productivity. Most of the organizations are reluctant to migrate to the cloud just because of the massive security vulnerabilities of cloud computing. Hypervisor, which is used in any virtualization environment to elevate the virtual machine collaboration, can be easily breached if not secured optimally. Hypervisor based cloud servers are always exposed to the Distributed denial-of-service (DDoS) attacks and the “single point of failure” weakness of the hypervisor based cloud servers can easy be exploited to take down the whole cloud along with its resources. We will give you some state of the art yet simple ways to secure a cloud based virtualization environment which is using a hypervisor for virtual communication. You can use any one of the tips keeping in view the organizational needs and suitability.

Depleting the emulation frequency of the hypervisor and minimizing its remote calls to the resources across the cloud is one of the most useful and easy ways to secure a cloud. “NoHype” architecture makes sure that hypervisor does not have to interact with the virtual machines constantly. Allocation of the resources, I/O calls and assigning of processor cores is done before the start of the collaboration thus minimizing the active interaction time of the hypervisor.

Processor based virtualization assistance procedures must be stopped if they are not being used in the virtual environment because of the fact that Intel VT and other processor virtualization techniques start many memory management and isolated processes in the background which are necessary when you are hosting different Hyper- V based applications. When these applications are not being used, the isolated processes and processor based virtualization can be a serious threat to the physical layers of the cloud.

Another option is to deploy the behavioral analysis of the encrypted data from the virtual machines by using the HSEM security layer. HSEM will notify the hypervisor about any peculiar activity and hypervisor will block or limit activity of that machine according to the proposed security levels until the status of the machine is not cleared. In this architecture, there will a VM Security Monitor (VSEM) in every virtual machine which will responsible for monitoring the data transmission activity. VSEM will notify the hypervisor security monitors about any malicious or potentially malignant activity and necessary security level will be implemented accordingly.

Intermingling of the security zones of different virtual machines is one the most common factors which is responsible for the security beaches in the clouds. Cloud servers and hypervisors allow the auto switching of the virtual machines in order to avoid the extra workload on Hyper-V arrays. This can give rise to confusion between different security zones. Hyper-V arrays must be designed with a clear segregation of the security zones. If your cloud needs internet based remote services like TMG firewall, UAG SSL server, then you should devise a policy that should allocate these services to a separate array. All the services and resources which do not need internet calls like share point, SQL, must be integrated in separate arrays.

Limiting the remote access to the hypervisor is the key in maintaining and optimizing the security of your cloud because most of the hypervisors being used today allow the SSH, RDP and specialized management client and server connectivity access requests by default. Using the encryption at all levels of the cloud is the pre-requisite if you want to make your cloud secure and free of vulnerabilities. Choice of encryption systems is a key factor in ensuring the security of the data. Encryption systems like gKrypt and Bit locker which encrypts large volumes of data is a good choice because these systems ensure the boot level security right from the hardware level.

By Salman UI Haq

About CloudTweaks

Established in 2009, CloudTweaks is recognized as one of the leading authorities in connected technology information and services.

We embrace and instill thought leadership insights, relevant and timely news related stories, unbiased benchmark reporting as well as offer green/cleantech learning and consultive services around the world.

Our vision is to create awareness and to help find innovative ways to connect our planet in a positive eco-friendly manner.

In the meantime, you may connect with CloudTweaks by following and sharing our resources.

View All Articles

Sorry, comments are closed for this post.

Utilizing Digital Marketing Techniques Via The Cloud

Utilizing Digital Marketing Techniques Via The Cloud

Digital Marketing Trends In the past, trends in the exceptionally fast-paced digital marketing arena have been quickly adopted or abandoned, keeping marketers and consumers on their toes. 2016 promises a similarly expeditious temperament, with a few new digital marketing offerings taking center stage. According to Gartner’s recent research into Digital Marketing Hubs, brands plan to…

Fintech Investments Are Seeing Consistent Growth

Fintech Investments Are Seeing Consistent Growth

The Financial Services Cloud Fintech investment has been seeing consistent growth in 2015, with some large moves being made this year. The infographic (Courtesy of Venturescanner) below shows the top Fintech investors and the amount of companies they’re currently funding: Just this week, a financial data startup known as Orchard Platform raised $30 million in…

The Cloud Above Our Home

The Cloud Above Our Home

Our Home – Moving All Things Into The Cloud The promise of a smart home had excited the imagination of the movie makers long ago. If you have seen any TV shows in the nineties or before, the interpretation presented itself to us as a computerized personal assistant or a robot housekeeper. It was smart,…

Three Factors for Choosing Your Long-term Cloud Strategy

Three Factors for Choosing Your Long-term Cloud Strategy

Choosing Your Long-term Cloud Strategy A few weeks ago I visited the global headquarters of a large multi-national company to discuss cloud strategy with the CIO. I arrived 30 minutes early and took a tour of the area where the marketing team showcased their award winning brands. I was impressed by the digital marketing strategy…

Infographic: The Evolving Internet of Things

Infographic: The Evolving Internet of Things

Evolving Internet of Things  The Internet of Things, or IoT, a term devised in 1999 by British entrepreneur Kevin Ashton, represents the connection of physical devices, systems and services via the internet, and Gartner and Lucas Blake’s new infographic (below) explores the evolution of the IoT industry, investigating its potential impact across just about every…

Cloud Computing Then & Now

Cloud Computing Then & Now

The Evolving Cloud  From as early as the onset of modern computing, the possibility of resource distribution has been explored. Today’s cloud computing environment goes well beyond what most could even have imagined at the birth of modern computing and innovation in the field isn’t slowing. A Brief History Matillion’s interactive timeline of cloud begins…

Cloud Infographic – What Is The Internet of Things?

Cloud Infographic – What Is The Internet of Things?

What Is The Internet of Things? “We’re still in the first minutes of the first day of the Internet revolution.”  – Scott Cook The Internet of Things (IOT) and Smart Systems are based on the notions of Sensors, Connectivity, People and Processes. We are creating a new world to view and measure anything around us through…

Low Cost Cloud Computing Gives Rise To Startups

Low Cost Cloud Computing Gives Rise To Startups

Balancing The Playing Field For Startups According to a Goldman Sachs report, cloud infrastructure and platform spending could reach $43 billion by 2018, which is up $16 billion from last year, representing a growth of around 30% from 2013 said the analyst. This phenomenal growth is laying the foundation for a new breed of startup…

10 Trending US Cities For Tech Jobs And Startups

10 Trending US Cities For Tech Jobs And Startups

10 Trending US Cities For Tech Jobs And Startups Traditionally actors headed for Hollywood while techies made a beeline for Silicon Valley. But times are changing, and with technological job opportunities expanding (Infographic), new hotspots are emerging that offer fantastic opportunities for tech jobs and startup companies in the industry. ZipRecruiter, an online recruitment and job…

5 Surprising Ways Cloud Computing Is Changing Education

5 Surprising Ways Cloud Computing Is Changing Education

Cloud Computing Education The benefits of cloud computing are being recognized in businesses and institutions across the board, with almost 90 percent of organizations currently using some kind of cloud-based application. The immediate benefits of cloud computing are obvious: cloud-based applications reduce infrastructure and IT costs, increase accessibility, enable collaboration, and allow organizations more flexibility…