Cyber-Manufacturing System Testbed Development: Adversarial Insider Manipulation

Abstract

Insiders are one of the most difficult attackers to deal with in manufacturing systems because of their legitimate access to critical manufacturing components, data, and information. Even a Cyber-Manufacturing System (CMS) that is equipped with the most effective intrusion detection system is vulnerable to insider threats. Insiders who are in the security parameter of a manufacturing system can easily incapacitate it with their authenticated access to the system. In order to devise ways to address the insider threats in CMS, a testbed was developed. To validate and evaluate the usefulness of the testbed for adversarial insider attacks, three physical audits and their results are presented with two case studies.