If you read the article: "One vulnerability that Santamarta said he found in equipment from all five manufacturers was the use of 'hardcoded' log-in credentials, which are designed to let service technicians access any piece of equipment with the same login and password."
Sounds like he could access the plane's systems from an administrator's perspective. I would watch the Black Hat presentation to be sure.
Sounds like he could access the plane's systems from an administrator's perspective. I would watch the Black Hat presentation to be sure.