Car hackers build kit to protect you and your motor from fiery death

Turns out IDS is actually useful for something

Choosing a cloud hosting partner with confidence

Black Hat 2014 At last year’s Black Hat USA, Charlie Miller, security engineer at Twitter and Apple-cracker extraordinaire, and Chris Valasek, director of security intelligence at IOActive, showed delegates how to hack a car. This year they demoed a system that can stop any such hacks dead.

Over the past 12 months, the duo have been going through publicly available information about car systems and hacking their own vehicles. The results of their research is that while it is possible to remotely hack – and in some cases take limited control of a vehicle – it’s very difficult and will only work with certain models.

All car computer systems share common features, principally at least one controller area network (CAN) that shuffles messages between various computer systems on the car, such as brake sensors and radios. While these are hackable, that’s not the whole story.

For a start, only a few cars allow computer control of the steering, acceleration, and braking systems of the car. Typically these are installed to handle features like automatic parking, adaptive cruise control and collision-avoidance systems.

But the pair found a wide variation among manufacturers in the network design and security protocols used. For example, most CANs can receive messages from one part of the car and not just route that data to a control system, but interpret it and rewrite it before forwarding it on.

More than a few car manufacturers isolate the systems for controlling things like acceleration and steering on a separate CAN so that commands can’t be directed to them from other parts of the car. Other models use a privilege system so that messages from minor units can’t communicate with safety-critical ones.

Web browsers in cars – we know where this is going

The problem is that cars are becoming more heavily computerized and that leads to more networking so the driver and passengers can get access to up-to-date information while on the move: most newish cars have a Bluetooth system hidden inside, a connection to the cellular data network, and so on.

Now manufacturers are building web browsers into cars, which brings the world to your fingertips but introduces a whole different security ballgame. It's now easy for an attacker to find his or her way into a car from the other side of the planet and run code on it, we're told.

"Once you add a web browser to a car, it's open," Miller told the conference in Las Vegas on Wednesday. "I may not be able to write a Bluetooth exploit, but I know I can exploit web browsers."

The security of the networking aside, there are other problems: patching is a major issue. It’s hard enough to get computer users to patch, but when you've got drive to a dealership for a software security upgrade, people are likely not to bother.

But, as it turns out, protecting against car hacking is a relatively simple matter, and the two have put together a cheap little board and software – dubbed the Can-no hackalator 3000 – which can be fitted to any car – or so we're told – and stop hacks using a old, and much maligned, piece of security software: an intrusion detection system.

"IDS sucks in computers, but it turns out they work for cars because cars are simple," said Miller.

While IDS systems on big networks can fail to spot dodgy traffic, with cars the networks are so basic and the messages sent so simple that an IDS system is really effective. Furthermore the device is car agnostic and very easy to use, it was claimed.

The two showed a video of the Can-no hackalator 3000 plugged into a car’s network, where it spent about ten seconds scanning the system and learning how and what messages are in circulation.

When a hack of the car was attempted, the Can-no hackalator 3000 detected it immediately and blocked computer control of the car’s functions just in case. While the car is manually drivable in this state, features like adaptive cruise control won't work. Compare that inconvenience to a fiery ball of death, however. ®

Internet Security Threat Report 2014

More from The Register

next story
FYI: OS X Yosemite's Spotlight tells Apple EVERYTHING you're looking for
It's on by default – didn't you read the small print?
Russian hackers exploit 'Sandworm' bug 'to spy on NATO, EU PCs'
Fix imminent from Microsoft for Vista, Server 2008, other stuff
Edward who? GCHQ boss dodges Snowden topic during last speech
UK spies would rather 'walk' than do 'mass surveillance'
Microsoft pulls another dodgy patch
Redmond makes a hash of hashing add-on
'LulzSec leader Aush0k' found to be naughty boy not worthy of jail
15 months home detention leaves egg on feds' faces as they grab for more power
China is ALREADY spying on Apple iCloud users, claims watchdog
Attack harvests users' info at iPhone 6 launch
Carders punch holes through Staples
Investigation launched into East Coast stores
prev story


Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.