University of Birmingham > Talks@bham > Facts and Snacks > FnS: Breaking VoLTE Privacy in LTE/5G networks

FnS: Breaking VoLTE Privacy in LTE/5G networks

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If you have a question about this talk, please contact Mirco Giacobbe.

Voice over LTE (VoLTE), or Voice over NR (VoNR) in 5g, has been widely deployed by operators to provide a better calling experience. VoLTE/NR protocol relies on the LTE /5G security features to protect subscribers’ privacy such that nobody can monitor users’ calling activities, e.g., calling time, duration, and direction. Unfortunately, recent studies reveal that data exchanged between phones and the cellular tower is not well protected, which can be used to overwrite physical layer signals, redirect victims’ DNS requests and so on. This talk will present a privacy attack which enables adversaries to analyse encrypted LTE /5G traffic and recover VoLTE/NR logs. The logs describes victims’ activities consisting of call times, duration, speaker direction, and IMSI .

This talk is part of the Facts and Snacks series.

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