This is where we identified a significant security problem. While it’s useful to configure your Glass QR code and easily connect to wireless networks, it’s not so great when other people can use those same QR codes to tell your Glass to connect to their WiFi Networks or their Bluetooth devices. Unfortunately, this is exactly what we found. We analyzed how to make QR codes based on configuration instructions and produced our own “malicious” QR codes. When photographed by an unsuspecting Glass user, the code forced Glass to connect silently to a “hostile” WiFi access point that we controlled. That access point in turn allowed us to spy on the connections Glass made, from web requests to images uploaded to the Cloud. Finally, it also allowed us to divert Glass to a page on the access point containing a known Android 4.0.4 web vulnerability that hacked Glass as it browsed the page.
Glass was hacked by the image of a malicious QR code. Both the vulnerability and its method of delivery are unique to Glass as a consequence of it becoming a connected thing.