Year: 2025
Type: conference-paper
Abstract: Security vulnerabilities in Programmable Logic Controllers (PLCs) within Industrial Control Systems (ICS) using the Modbus/TCP protocol pose significant risks, particularly through stop-and-start command injection attacks that impact PLC operations and cause severe industrial consequences.Supported by Taiwan's National Science and Technology Council (NSTC) and the Water Resources Agency, this research establishes a cybersecurity testbed for water resource systems to investigate these threats.Unauthorized or forged commands are shown to manipulate PLC configurations and ladder logic diagrams, revealing critical weaknesses.Flowchart analyses and Modbus packet examinations highlight the risks and offer actionable insights into effective defense mechanisms for enhancing ICS security.
Authors: Nai-Yu Chen, Cheng-Ying He, Jung-Shain Li, Chu-Sing Yang, I-Hsien Liu
Institution: National Cheng Kung University
Language: English
Subfield: Control and Systems Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4409913901