Simulation and impact analysis of denial-of-service attacks on power SCADA

With ever growing threat of cyber terrorism, vulnerability of the Supervisory Control and Data Acquisition (SCADA) systems is the most common subject for most security researchers now. Attacks on SCADA systems are increasing and its impact needs to be studied to implement proper counter measures. Many of the SCADA systems are relatively insecure with chronic and pervasive vulnerabilities. This paper explains possible vulnerabilities present in SCADA systems and also present the impact analysis of Denial of Service (DoS) by modeling attack using influence diagram. Simulation of DoS attacks will help in analyzing and accessing the security of SCADA system and also used to analyze the impact. Experiments have been conducted on RTU by targeting “availability” of the system, results have been analyzed and impact has been studied.