Enabling Physical Localization of Uncooperative Cellular Devices

• URL: http://arxiv.org/abs/2403.14963v3
• Date: Thu, 26 Sep 2024 13:14:12 GMT
• Title: Enabling Physical Localization of Uncooperative Cellular Devices
• Authors: Taekkyung Oh, Sangwook Bae, Junho Ahn, Yonghwa Lee, Tuan Dinh Hoang, Min Suk Kang, Nils Ole Tippenhauer, Yongdae Kim,
• Abstract summary: In cellular networks, authorities may need to physically locate user devices to track criminals or illegal equipment. This work examines the impact of these real-world challenges on cellular localization and introduces the Uncooperative Multiangulation Attack (UMA) UMA can 1) force a target device to transmit traffic continuously, 2) boost the target's signal strength to maximum levels, and 3) uniquely differentiate between signals from the target and repeaters.
• Score: 18.373893583193855
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In cellular networks, authorities may need to physically locate user devices to track criminals or illegal equipment. This process involves authorized agents tracing devices by monitoring uplink signals with cellular operator assistance. However, tracking uncooperative uplink signal sources remains challenging, even for operators and authorities. Three key challenges persist for fine-grained localization: i) devices must generate sufficient, consistent uplink traffic over time, ii) target devices may transmit uplink signals at very low power, and iii) signals from cellular repeaters may hinder localization of the target device. While these challenges pose significant practical obstacles to localization, they have been largely overlooked in existing research. This work examines the impact of these real-world challenges on cellular localization and introduces the Uncooperative Multiangulation Attack (UMA) to address them. UMA can 1) force a target device to transmit traffic continuously, 2) boost the target's signal strength to maximum levels, and 3) uniquely differentiate between signals from the target and repeaters. Importantly, UMA operates without requiring privileged access to cellular operators or user devices, making it applicable to any LTE network. Our evaluations demonstrate that UMA effectively overcomes practical challenges in physical localization when devices are uncooperative.

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