Supervisory control and data acquisition (SCADA) systems are commonly used to monitor and control critical infrastructure assets. However, over the past two decades, they have evolved from closed, proprietary systems to open networks comprising commodity platforms running common operating systems and TCP/IP stacks. The open architecture and increased connectivity provide more functionality and reduce costs, but they significantly increase the vulnerabilities and the exposure to threats. Since SCADA systems and the critical infrastructure assets they control must have 24/7 availability, it is imperative to understand and manage the risk. This paper makes the case for a European SCADA security testbed that can be used to analyze vulnerabilities, threats and the impact of attacks, ultimately helping design new architectures and robust security solutions. The paper also discusses testbed requirements, deployment strategies and potential hurdles.
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