Assessing the Security of OPC UA Deployments
This work addresses security configuration issues for operators of industrial systems, but it is incremental as it builds on existing tools.
The paper tackled the problem of securing OPC UA deployments in industrial settings by developing extensions to the Metasploit Framework for network-based security assessments, enabling operators to verify configurations and identify vulnerabilities.
To address the increasing security demands of industrial deployments, OPC UA is one of the first industrial protocols explicitly designed with security in mind. However, deploying it securely requires a thorough configuration of a wide range of options. Thus, assessing the security of OPC UA deployments and their configuration is necessary to ensure secure operation, most importantly confidentiality and integrity of industrial processes. In this work, we present extensions to the popular Metasploit Framework to ease network-based security assessments of OPC UA deployments. To this end, we discuss methods to discover OPC UA servers, test their authentication, obtain their configuration, and check for vulnerabilities. Ultimately, our work enables operators to verify the (security) configuration of their systems and identify potential attack vectors.