Security flaws found in power grid systems
16 August 2018
Schweitzer Engineering Laboratories invents, designs, and builds digital products and systems that protect power grids around the world. This technology prevents blackouts and enables customers to improve power system reliability and safety at a reduced cost.
Applied Risk is an established leader in Industrial Control Systems security that helps to protect assets and reduce security risk. Researcher Gjoko Krstic has identified vulnerabilities in the Schweitzer Engineering Laboratories Compass version 126.96.36.199 and Schweitzer Engineering Laboratories Acselerator Architect version 188.8.131.52.
For Acselerator, an unauthenticated user can craft a malicious project and/or template file that will enable them to read arbitrary files within the context of an affected system, allowing disclosure of valuable information via out of band channels. It can also cause a denial of service scenario requiring an application restart, by running a malicious FTP server.
SEL Compass suffers from a vulnerability related to elevation of privileges, which can be used by an authenticated user that can change the executable file and further infect the affected system.
Applied Risk has worked alongside the manufacturer in the responsible disclosure process, and the fix has now been issued. For end users, updating the product firmware to the latest version the manufacturer has provided will fix this vulnerability.