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Thread: Bluetooth KNOB attack

  1. #1
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    Bluetooth KNOB attack

    Key Negotiation of Bluetooth Attack, Breaking Bluetooth Security:
    https://knobattack.com/

    New Bluetooth Vulnerability Lets Attackers Spy On Encrypted Connections:
    https://thehackernews.com/2019/08/bl...erability.html

  2. #2
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    Rather funny attack, somewhat resembles wi-fi weakness, where managemen frames are neither encrypted, nor authenticated either. While it doesn't breaks wi-fi crypto in e.g. WPA2, it still gives room for nasty attacks.

    I guess it's possible to work it around, by refusing to communicate if key is too short, but it can cause some compatibility problems and also requires to change both firmware and OSes bluetooth stacks, which makes deployment rather troublesome - so I can imagine this vuln would stay around for a while.

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