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ACSAC
2015
IEEE

Proactive Security Analysis of Changes in Virtualized Infrastructures

3 years 2 months ago
Proactive Security Analysis of Changes in Virtualized Infrastructures
The pervasiveness of cloud computing can be attributed to its scale and elasticity. However, the operational complexity of the underlying cloud infrastructure is high, due to its dynamics, multi-tenancy, and size. Misconfigurations and insider attacks carry significant operational and security risks, such as breaches in tenant isolation put both the infrastructure provider and the consumers at risk. We tackle this challenge by establishing a practical security system, called Weatherman, that proactively analyzes changes induced by management operations with respect to security policies. We achieve this by contributing the first formal model of cloud management operations that captures their impact on the infrastructure in the form of graph transformations. Our approach combines such a model of operations with an information flow analysis suited for isolation as well as a policy verifier for a variety of security and operational policies. Our system provides a run-time enforcement...
Sören Bleikertz, Carsten Vogel, Thomas Gro&sz
Added 13 Apr 2016
Updated 13 Apr 2016
Type Journal
Year 2015
Where ACSAC
Authors Sören Bleikertz, Carsten Vogel, Thomas Groß, Sebastian Mödersheim
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