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Abstract
The exponential rise of the cloud computing paradigm has led to the cybersecurity concerns, taking into account the fact that the resources are shared and mediated by a ‘hypervisor’ that may be attacked and user data can be compromised or hacked. In order to better define these threats to which a cloud hypervisor is exposed, we conducted an in-depth analysis and highlighted the security concerns of the cloud. We basically focused on the two particular issues, i.e., (a) data breaches and (b) weak authentication. For in-depth analysis, we have successfully demonstrated a fully functional private cloud infrastructure running on CloudStack for the software management and orchestrated a valid hack. We analyzed the popular open-source hypervisors, followed by an extensive study of the vulnerability reports associated with them. Based on our findings, we propose the characterization and countermeasures of hypervisor’s vulnerabilities. These investigations can be used to understand the potential attack paths on cloud computing and Cloud-of-Things (CoT) applications and identify the vulnerabilities that enabled them.
Highlights
The exponential rise of the cloud computing paradigm has led to the cybersecurity concerns, taking into account the fact that the resources are shared and mediated by a ‘hypervisor’ that may be attacked and user data can be compromised or hacked
We have reviewed the security vulnerabilities of cloud hypervisors in detail by considering the threats and countermeasures
We have focused on the security concerns with this emerging cloud technologies, in particular on data breaches and weak authentication
Summary
Over the past few years, demand for access to data for ever-increasing online users has grown exponentially, with the traditional data centre model not being able to cope with the access from anywhere and any device [1]. Cloud security is a growing concern because the underlying concept is based on sharing hypervisor platforms, placing the security of the clients data on the hypervisors ability to separate resources from a multitenanted system and trusting the providers with administration privileges to their systems [13] Compromising this hypervisor with a malware attack or gaining root permission for an attacker would allow full access to the shared memory of the physical machine and the content of all the guest virtual machines (VMs) running on this physical platform [5]. Cloud has added a management layer, capable of separating and billing tenants, allowing the cloud service providers to create an on demand service for their customers This survey paper highlights the security concerns of the cloud and focuses on two particular issues, data breaches and weak authentication. These exercises demonstrated that traditional forensic and authentication exploits are still valid security concerns for the cloud providers
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