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Topological Analysis of Network Attack Vulnerability

  • Sushil Jajodia
  • Steven Noel
  • Brian O’Berry
Part of the Massive Computing book series (MACO, volume 5)

Abstract

To understand overall vulnerability to network attack, one must consider attacker exploits not just in isolation, but also in combination. That is, one must analyze how low-level vulnerabilities can be combined to achieve high-level attack goals. In this chapter, we describe a tool that implements an integrated, topological approach to network vulnerability analysis. Our Topological Vulnerability Analysis (TVA) tool automates the labor-intensive type of analysis usually performed by penetration-testing experts. It is ideal for inexpensive what-if analyses of the impact of various network configurations on overall network security. The TVA tool includes modeling of network security conditions and attack techniques (exploits), automatic population of models via the Nessus vulnerability scanner, and analysis of exploit sequences (attack paths) leading to specific attack goals. Moreover, the tool generates a graph of dependencies among exploits that represents all possible attack paths without having to enumerate them. This representation enables highly scalable methods of vulnerability analysis, such as computing network configurations that guarantee the security of given network resources. Finally, this chapter describes some of the open technical challenges for the TVA approach.

Keywords

Network vulnerability analysis network attack modeling network hardening 

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Sushil Jajodia
    • 1
  • Steven Noel
    • 1
  • Brian O’Berry
    • 1
  1. 1.Center for Secure Information SystemsGeorge Mason UniversityUSA

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