Mistakes could compromise the entire global supply chain of the automaker and its suppliers.
US cybersecurity researcher Eaton Zweare discovered 4 critical vulnerabilities in Toyota systems in a week. The specialist managed to hack into Toyota's Global Supplier Information Management System (G-SPIMS), a web application used by company employees and their suppliers to coordinate projects, purchases, and other tasks related to Toyota's global supply chain.
The hack was fairly easy to perform. Zwear discovered a backdoor login mechanism on the website that allowed him to log in as a corporate user or Toyota supplier simply by knowing their email.
As a result, he found the system administrator's email address and was able to log into his account. The researcher then gained full control over the entire global Toyota system.
"I had full access to Toyota's internal projects, documents, and user accounts, including those of Toyota's external partners/suppliers," the researcher said.
These external accounts included users from Michelin, Continental, Stanley Black & Decker, Timken, and others. Zwear reported the problem to Toyota on November 3, and the company announced 20 days later that the problem had been fixed.
According to the specialist, if an attacker discovered the problem, "the consequences could be serious" - he could leak data, delete it or change it to disrupt Toyota's global operations
Moreover, a cybercriminal could conduct a targeted phishing campaign to try to obtain login details on a corporate network. This would likely expose other Toyota systems to attack.
“It's one thing to have over 14,000 corporate emails, and quite another to have over 14,000 corporate emails and know exactly what they are/were working on. If a provider user has a habit of reusing passwords, it is possible that their own infrastructure could also be attacked,” the researcher said.
Earlier it became known that vulnerabilities in the telematics systems of millions of cars of popular brands could allow an attacker to remotely seize a car. The bugs affect Mercedes-Benz, BMW, Rolls Royce, Ferrari, Ford, Porsche, Toyota, Jaguar and Land Rover, as well as fleet management company Spireon.