2015 · 54 citations · 21 references
ComputingComputer ScienceElectrical EngineeringComputer SecurityNetwork SecurityWireless SecurityAttack Surface AnalysisCellular Network SecurityMobile Network SecurityNetwork Protocol VulnerabilitiesPhysical Layer SecuritySecure Mobile CommunicationAttack Detection In Mobile NetworksCellular Network ArchitectureCellular Network ProtocolsCircuit Switched NetworksLong Term Evolution SecurityMobile Application Attack Surface AnalysisProtocol Vulnerability AnalysisUser Equipment Security
Long Term Evolution (LTE) is becoming the dominant cellular networking technology, shifting the cellular network away from its circuit-switched legacy towards a packet-switched network that resembles the Internet. To support voice calls over the LTE network, operators have introduced Voice-over-LTE (VoLTE), which dramatically changes how voice calls are handled, both from user equipment and infrastructure perspectives. We find that this dramatic shift opens up a number of new attack surfaces that have not been previously explored. To call attention to this matter, this paper presents a systematic security analysis.
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