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Researchers from Israeli firm Check Point reported a hack of the LG SmartThinQ app that allowed them to remotely take control of the manufacturer's Hom-Bot hoover and use the video feed to spy on anything in the device's vicinity. And, the researchers said, the attack could also compromise refrigerators, ovens, dishwashers, washing machines, dryers and air conditioners — any connected thing controlled by the LG app.
Users should update to the latest version of the app (1.9.23) through Google Play, the Apple App Store or the LG SmartThinQ settings, if they haven't done so already. That will prevent the attacks, which were first disclosed to LG on July 31, before being fixed in a SmartThinQ release this September.
But the hack goes to show just how an entire home can be exposed to hackers with a simple weakness in a mobile application. The Check Point researchers showed just how the Hom-Bot, reportedly owned by more than one million users, could be forced to relay a video feed to hackers sitting in front of a PC.
Hack only needs an email address
The vulnerability lay in how the SmartThinQ app processed logins and only required the hacker with moderate skill to know the email address of the target. To understand what went wrong, a quick primer on how the app handled authentication is required. First, the user would enter their login details, which would be validated by a backend server. Second, a signature would be created based on the provided username (i.e. the email address). Third, an access token would be generated, combining information from the signature and the username. That token allowed access to the account.
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