Modeling the Stuxnet attack with BDMP: Towards more formal risk assessments

Autor: Marc Bouissou, Siwar Kriaa, Ludovic Pietre-Cambacedes
Přispěvatelé: Ecole Centrale Paris, EDF (EDF)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Risk and Security of Internet and Systems (CRiSIS), 2012 7th International Conference on
Risk and Security of Internet and Systems (CRiSIS), 2012 7th International Conference on, Oct 2012, Cork, Ireland. ⟨10.1109/CRISIS.2012.6378942⟩
CRiSIS
DOI: 10.1109/CRISIS.2012.6378942⟩
Popis: International audience; Attack modeling has recently been adopted by security analysts as a useful tool in risk assessment of cyber-physical systems. We propose in this paper to model the Stuxnet attack with BDMP (Boolean logic Driven Markov Processes) formalism and to show the advantages of such modeling. After a description of the architecture targeted by Stuxnet, we explain the steps of the attack and model them formally with a BDMP. Based on estimated values of the success probabilities and rates of the elementary attack steps, we give a quantification of the main possible sequences leading to the physical destruction of the targeted industrial facility. This example completes a series of papers on BDMP applied to security by modeling a real case study. It highlights the advantages of BDMP compared to attack trees often used in security assessment.
Databáze: OpenAIRE