EV charging stations still riddled with cybersecurity vulnerabilities

The increasing popularity of electric vehicles (EVs) isn’t just a favorite for gas-conscious consumers, but also for cybercriminals who focus on using EV charging stations to launch far-reaching attacks. This is because every charging point, whether inside a private garage or on a public parking lot, is online and running a variety of software that interacts with payment systems and the electric grid, along with storing driver identities. In other words, they are an Internet of Things (IoT) software sinkhole.

“As EV charging becomes more widespread, they will become appealing targets to more sophisticated hacking groups,” says Hooman Shahidi, the CEO of EVPassport, a charging network provider. “Providers need to think of their products as critical infrastructure and a critical component of our national security.” There are 2.5 million electric vehicles operating in the US, and more than half of them require plug-in chargers. Acknowledging their popularity, back in 2022, the UK mandated charging stations be built in all new residential construction.

Charging stations face significant cybersecurity risks. “Issues include unprotected Internet connectivity, insufficient authentication and encryption, absence of network segmentation, unmanaged energy assets, and more,” wrote researchers from Check Point Software and SaiFlow, the latter a cybersecurity specialist in distributed energy solutions. Compromised stations could damage the power grid, for example, or result in stolen customer data. “Chargers have personal and payment information and run a variety of protocols that aren’t typically recognized by traditional firewalls,” says Check Point Software’s Aaron Rose, who works in the office of the CTO.

The early stages of cyberattacks on charging stations began a few years ago, when one Russian station was attacked in February 2022 in response to the Ukraine war and three more were compromised in the United Kingdom in April 2022. Both situations were more cyber pranks that displayed rude messages on the screens of the units. Shell patched a vulnerability last year in one database that could have exposed millions of charging logs from across its EV charging network.

New vulnerabilities continue to plague charging stations. Two of them could lead to remote code execution and potential data theft, discovered by SaiFlow earlier this year. The exploits take advantage of weak authentication routines among the various software modules that are used in the stations, according to their research. Charging station vendor Enel X Way lists a variety of other data compromises involving vehicle ID numbers, as well as exploits that could gain remote access to the vehicle controls.

Elias Bou-Harb is a computer scientist with the Louisiana State University who has long studied charging station security. He has found almost every charging product has major vulnerabilities, including well-known attack methods such as SQL injection and cross-site scripting. “What is particularly alarming is that some well-known protective measures haven’t been implemented by most of the vendors, and that few of them have taken steps to improve their security even after we identified these weaknesses.”

IoT Devices Remain Attractive Targets

Certainly, threats from charging stations aren’t the only IoT devices that are targets of opportunity for cyberattackers. And the stations are just one of a multitude of IoT devices where exploits continue to increase. The combination of numerous smaller vendors with poor security design and practice and numerous automated tools such as botnets to locate and compromise various devices makes all IoT devices easy targets for hackers. Data from the US Federal Communications Commission (FCC) increased since then.

To read the complete article, visit Dark Reading.