Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection System

Interconnected industrial control system (ICS) networks based on routable protocols are susceptible to remote attacks similar to classical information technology (IT) networks. However, addressing ICS security in an isolated view is dangerous since ICSs have to ensure safety measures for people, pro...

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Main Authors: Bernhard Brenner, Siegfried Hollerer, Pushparaj Bhosale, Thilo Sauter, Wolfgang Kastner, Joachim Fabini, Tanja Zseby
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Open Journal of the Industrial Electronics Society
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10187675/
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author Bernhard Brenner
Siegfried Hollerer
Pushparaj Bhosale
Thilo Sauter
Wolfgang Kastner
Joachim Fabini
Tanja Zseby
author_facet Bernhard Brenner
Siegfried Hollerer
Pushparaj Bhosale
Thilo Sauter
Wolfgang Kastner
Joachim Fabini
Tanja Zseby
author_sort Bernhard Brenner
collection DOAJ
description Interconnected industrial control system (ICS) networks based on routable protocols are susceptible to remote attacks similar to classical information technology (IT) networks. However, addressing ICS security in an isolated view is dangerous since ICSs have to ensure safety measures for people, processes, and the environment. The safety and security of ICSs are often addressed separately, without considering their important interrelation. Safety measures can violate security policies (e.g., an emergency stop function accessible by anyone); likewise, a security incident can violate safety policies (e.g., by increasing reaction time). In this article, we propose a network-based intrusion detection system with the interrelation between safety and security in mind. It detects security incidents while evaluating possible safety-related consequences of both the detected attack and possible countermeasures. We evaluate our approach with a Proof of Concept (PoC). The alerts generated by the PoC prototype serve as the basis for a risk management strategy proposed in this article. Our approach provides a basis for safety-aware intrusion detection in smart factories and other cyber-physical systems.
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spelling doaj.art-083780e36b044a569708374923db9b7c2024-01-30T00:06:10ZengIEEEIEEE Open Journal of the Industrial Electronics Society2644-12842023-01-01428730310.1109/OJIES.2023.329705710187675Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection SystemBernhard Brenner0https://orcid.org/0000-0001-9549-467XSiegfried Hollerer1https://orcid.org/0000-0002-3814-6019Pushparaj Bhosale2https://orcid.org/0000-0001-5760-2342Thilo Sauter3Wolfgang Kastner4https://orcid.org/0000-0001-5420-404XJoachim Fabini5https://orcid.org/0000-0002-8285-1591Tanja Zseby6https://orcid.org/0000-0002-5391-467XInstitute of Telecommunications, TU Wien, Vienna, AustriaInstitute of Computer Engineering, TU Wien, Vienna, AustriaInstitute of Computer Engineering, TU Wien, Vienna, AustriaInstitute of Computer Technology, TU Wien, Vienna, AustriaInstitute of Computer Engineering, TU Wien, Vienna, AustriaInstitute of Telecommunications, TU Wien, Vienna, AustriaInstitute of Telecommunications, TU Wien, Vienna, AustriaInterconnected industrial control system (ICS) networks based on routable protocols are susceptible to remote attacks similar to classical information technology (IT) networks. However, addressing ICS security in an isolated view is dangerous since ICSs have to ensure safety measures for people, processes, and the environment. The safety and security of ICSs are often addressed separately, without considering their important interrelation. Safety measures can violate security policies (e.g., an emergency stop function accessible by anyone); likewise, a security incident can violate safety policies (e.g., by increasing reaction time). In this article, we propose a network-based intrusion detection system with the interrelation between safety and security in mind. It detects security incidents while evaluating possible safety-related consequences of both the detected attack and possible countermeasures. We evaluate our approach with a Proof of Concept (PoC). The alerts generated by the PoC prototype serve as the basis for a risk management strategy proposed in this article. Our approach provides a basis for safety-aware intrusion detection in smart factories and other cyber-physical systems.https://ieeexplore.ieee.org/document/10187675/Industrial control systems (ICSs)incident responseinformation technology (IT) / operational technology (OT) convergenceOT securityrisk managementsafety
spellingShingle Bernhard Brenner
Siegfried Hollerer
Pushparaj Bhosale
Thilo Sauter
Wolfgang Kastner
Joachim Fabini
Tanja Zseby
Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection System
IEEE Open Journal of the Industrial Electronics Society
Industrial control systems (ICSs)
incident response
information technology (IT) / operational technology (OT) convergence
OT security
risk management
safety
title Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection System
title_full Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection System
title_fullStr Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection System
title_full_unstemmed Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection System
title_short Better Safe Than Sorry: Risk Management Based on a Safety-Augmented Network Intrusion Detection System
title_sort better safe than sorry risk management based on a safety augmented network intrusion detection system
topic Industrial control systems (ICSs)
incident response
information technology (IT) / operational technology (OT) convergence
OT security
risk management
safety
url https://ieeexplore.ieee.org/document/10187675/
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