PowerRadio: Manipulate Sensor Measurementvia Power GND Radiation
Yan Jiang, Xiaoyu Ji, Yancheng Jiang, Kai Wang, Chenren Xu, Wenyuan Xu

TL;DR
PowerRadio introduces a novel attack method that manipulates sensor readings remotely by exploiting ground wiring and circuit asymmetries, bypassing existing protections and affecting various sensor types.
Contribution
This paper uncovers PowerRadio, a new threat vector that manipulates sensors via power ground radiation, providing methods, principles, and validation across multiple systems.
Findings
Successfully manipulated surveillance camera images
Injected inaudible voice commands into microphones
Validated attacks on diverse sensors and systems
Abstract
Sensors are key components enabling various applications, e.g., home intrusion detection and environmental monitoring. While various software defenses and physical protections are used to prevent sensor manipulation, this paper introduces a new threat vector, PowerRadio, that bypasses existing protections and changes sensor readings from a distance. PowerRadio leverages interconnected ground (GND) wires, a standard practice for electrical safety at home, to inject malicious signals. The injected signal is coupled by the sensor's analog measurement wire and eventually survives the noise filters, inducing incorrect measurement. We present three methods to manipulate sensors by inducing static bias, periodical signals, or pulses. For instance, we show adding stripes into the captured images of a surveillance camera or injecting inaudible voice commands into conference microphones. We study…
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Taxonomy
TopicsSensor Technology and Measurement Systems · Real-time simulation and control systems · Internet of Things and Social Network Interactions
