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Please use this identifier to cite or link to this item: http://hdl.handle.net/10277/509

Authors: Carcano, Andrea
Internal Tutor: TROMBETTA, ALBERTO
Tutor: NAI FOVINO, IGOR
Title: Advanced security aspects on Industrial Control Network.
Abstract: Security threats are one of the main problems of this computer-based era. All systems making use of information and communication technologies (ICT) are prone to failures and vulnerabilities that can be exploited by malicious software and agents. In the latest years, Industrial Critical Installations started to use massively network interconnections as well, and what it is worst they came in contact with the public network, i.e. with Internet. Industrial networks are responsible for process and manufacturing operations of almost every scale, and as a result the successful penetration of a control system network can be used to directly impact those processes. Consequences could potentially range from relatively benign disruptions, such as the disruption of the operation (taking a facility offline), the alteration of an operational process (changing the formula of a chemical process), all the way to deliberate acts of sabotage that are intended to cause harm. The interconnectivity of Industrial Control Systems with corporate networks and the Internet has significantly increased the threats to critical infrastructure assets. Meanwhile, traditional IT security solutions such as firewalls, intrusion detection systems and antivirus software are relatively ineffective against attacks that specifically target vulnerabilities in SCADA protocols. This presents presents an innovative approach to Intrusion Detection in SCADA systems based on the concept of Critical State Analysis and State Proximity. The theoretical framework is supported by tests conducted with an Intrusion Detection System prototype implementing the proposed detection approach.
Keywords: Scada, security, ICS, IDS, intrusion detection, modbus.
Subject MIUR : INF/01 INFORMATICA
Issue Date: 2013
Language: eng
Doctoral course: Informatica
Academic cycle: 25
Publisher: Università degli Studi dell'Insubria
Citation: Carcano, A.Advanced security aspects on Industrial Control Network. (Doctoral Thesis, Università degli Studi dell'Insubria, 2013).

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