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DBSEC
2008

An Attack Graph-Based Probabilistic Security Metric

8 years 4 months ago
An Attack Graph-Based Probabilistic Security Metric
To protect critical resources in today’s networked environments, it is desirable to quantify the likelihood of potential multi-step attacks that combine multiple vulnerabilities. This now becomes feasible due to a model of causal relationships between vulnerabilities, namely, attack graph. This paper proposes an attack graph-based probabilistic metric for network security and studies its efficient computation. We first define the basic metric and provide an intuitive and meaningful interpretation to the metric. We then study the definition in more complex attack graphs with cycles and extend the definition accordingly. We show that computing the metric directly from its definition is not efficient in many cases and propose heuristics to improve the efficiency of such computation.
Lingyu Wang, Tania Islam, Tao Long, Anoop Singhal,
Added 09 Nov 2010
Updated 09 Nov 2010
Type Conference
Year 2008
Where DBSEC
Authors Lingyu Wang, Tania Islam, Tao Long, Anoop Singhal, Sushil Jajodia
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