Near-Ultrasound Inaudible Trojan (NUIT): Exploit Your Speaker to Attack Your Microphone
What is NUIT?
NUIT is a novel inaudible attack against voice assistants (Siri, Google Assistant, Alexa, Cortana) that can be waged remotely through internet. Nuit appears as a sound clip in near-ultrasound frequency range (16kHz-20kHz), thus can be played on the victim's COTS speaker to attack the voice assistant (i) on the same device (NUIT-1)；(ii) on victim's other devices (NUIT-2).
Note that Nuit2 is between two phones (Device 1: performs as the attacking device or the speaker. Device 2 is the victim device, which voice assistants are the NUIT2 attacks’ target)
@inproceedings {287266,
title = {{Near-Ultrasound} Inaudible Trojan (Nuit): Exploiting Your Speaker to Attack Your Microphone},
booktitle = {32nd USENIX Security Symposium (USENIX Security 23)},
year = {2023},
address = {Anaheim, CA},
url = {https://www.usenix.org/node/287267},
publisher = {USENIX Association},
month = aug,
}
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NUIT is discovered by researchers from University of Texas at San Antonio and University of Colorado Colorado Springs. We are: