Multi-step Attack Modelling and Simulation (MsAMS) Framework based on Mobile Ambients


Nunes Leal Franqueira, V. and Lopes, R H C and van Eck, P.A.T. (2008) Multi-step Attack Modelling and Simulation (MsAMS) Framework based on Mobile Ambients. [Report]

Abstract:Attackers take advantage of any security breach to penetrate an
organisation perimeter and exploit hosts as stepping stones to
reach valuable assets, deeper in the network. The exploitation of
hosts is possible not only when vulnerabilities in commercial off-the-shelf
(COTS) software components are present, but also e.g. when an attacker
acquires a key (e.g. a password) on one host which allows him to
exploit further hosts on the network. Finding attacks involving the
latter case requires the ability to represent dynamic models.

In this paper we present MsAMS (Multi-step Attack Modelling and
Simulation), an implemented framework, based on Mobile
Ambients, to discover attacks in networks. The idea of ambients fits
naturally into this domain and has the advantage of providing
flexibility for modelling. Additionally, the concept of mobility
allows the simulation of attackers exploiting opportunities derived
either from the exploitation of vulnerable as well as from the
exploitation of non-vulnerable hosts, through the acquisition of keys.
Item Type:Report
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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