Title
Cyber-Physical Vulnerability Analysis of Communication-Based Train Control
Abstract
A cyber-physical system (CPS) is an entanglement of physical and computing systems by real-time information exchange through networking, which can be considered as real-time IoT because of end-to-end real-time performance guarantee. Most societal infrastructures, such as transportation systems, smart power grid, smart factory, and smart buildings, are key application domains of CPS. Though there have been extensive studies on infrastructures from the perspective of cyber security, insufficient research has been conducted from a practical viewpoint of <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">cyber-physical security</italic> . In this paper, we focus on train control systems as one of the critical infrastructures. We fully investigate the emerging de facto standard of train control systems, communication-based train control (CBTC). We analyze the cyber-physical vulnerability of CBTC and discover that a man-in-the-middle attack combined with knowledge on train signaling can cause train collisions in CBTC. To resolve the issue, we propose a countermeasure for resiliency of CBTC. By implementing a realistic CBTC testbed, we validate our analysis. To the best of our knowledge, this is the first in-depth empirical study on cyber-physical vulnerability of CBTC systems.
Year
DOI
Venue
2019
10.1109/JIOT.2019.2919066
IEEE Internet of Things Journal
Keywords
DocType
Volume
Control systems,Security,Acceleration,Internet of Things,Wireless communication,Real-time systems,Standards
Journal
6
Issue
ISSN
Citations 
4
2327-4662
3
PageRank 
References 
Authors
0.38
0
5
Name
Order
Citations
PageRank
Sangjun Kim141.40
Yuchang Won261.41
In-Hee Park341.06
Yongsoon Eun47723.26
Kyung-Joon Park527036.78