IMP4GT: IMPersonation Attacks in 4G NeTworks
David Rupprecht, Katharina Kohls, Thorsten Holz, Christina Poepper
Abstract
Long Term Evolution (LTE/4G) establishes mutual authentication with a provably secure Authentication and Key Agreement (AKA) protocol on layer three of the network stack. Permanent integrity protection of the control plane safeguards the traffic against manipulations. However, missing integrity protection of the user plane still allows an adversary to manipulate and redirect IP packets, as recently demonstrated.
Topics & Concepts
Computer scienceComputer securityComputer networkNetwork packetVulnerability (computing)AdversaryAuthentication (law)Reflection attackExploitMutual authenticationReplay attackAuthentication protocolChallenge–response authenticationAdvanced Authentication Protocols SecurityUser Authentication and Security SystemsCryptographic Implementations and Security