Hardware hacking is an interesting area and something not too many people get into as the soldering irons, capacitors and chipsets seem daunting. I did have a play around with cable boxes and satellite feeds in my earlier years and was surprised to find how insecure they were.
Most traffic is transmitted unencrypted, the stuff that is encrypted generally uses very weak algorithms or isn’t even encrypted – it’s just encoded (BASE64 etc).
Hacker Adam Laurie has spent a lot of time hacking away at Satellite feeds and has become quite a subject matter expert.
White-hat hacker Adam Laurie knows better than to think email, video-on-demand, and other content from Sky Broadcasting and other satellite TV providers is a private matter between him and the company. That’s because he’s spent the past decade monitoring satellite feeds and the vast amount of private information they leak to anyone with a dish.
“Looking at what kind of data you can see being broadcast, some of that is quite surprising,” he says. “Things you would expect to be secure turn out not to be secure. The most worrying thing is you can just see all this data going by.”
Using off-the-shelf components Laurie assembled himself, it’s not hard for him to spot private emails in transit, web browsing sessions, and live stock market data that’s not supposed to be available for free. The most unforgettable thing he’s seen came in 1997, when television reporters in Paris used unsecured feeds to beam back what was supposed to be closed-circuit coverage of Princess Diana’s death to a UK television network.
There has been research done by other hackers on the same subject (Jim Geovedi, Raditya Iryandi, and Anthony Zboralski) and they have exposed similar flaws, you can read the paper they published here [PDF].
Hacking into satellite receivers is a lot easier now than it used to be, thanks to their wide-spread embrace of Linux. In the old days, he had to build dedicated hardware to monitor transmissions. Now, Laurie’s Dreambox has an ethernet interface and its own shell, making it a snap to pipe its feed into a laptop. From there, he can analyze packets using standard programs such as Wireshark.
Other equipment includes a 1-meter dish and a diseq motor to point it at particular satellites. The cost of the gear is under $1,000.
Laurie has also developed software that analyzes hundreds of channels to pinpoint certain types of content, including traffic based on TCP, UDP, or SMTP. The program offers a 3D interface that allows the user to quickly isolate email transmissions, web surfing sessions, or television feeds that have recently been set up.
“The visualization technique makes it easy to spot things that are trying not to be spotted,” Laurie says.
Sounds like some pretty fancy software with some neat visualization allowing you to quickly pinpoint the data you are interested in, I hope he publishes it – or at least gives it a good demo so we can see how it works.
The slides gives an idea of what he’s been up to and how easy it is now with a modified Dreambox, I’ll be looking out for more info!
Source: The Register
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