LTE & IMSI CATCHER MYTHS presented at BlackHatEU 2015

by Ravishankar Borgaonkar, N. Asokan, Jean-pierre Seifert, Valtteri Niemi, Altaf Shaik,

Summary : It is true that LTE (4G) is more secure than its old generations GSM (2G) & UMTS (3G). In theory, most of the traditional IMSI catchers would not work in a straightforward manner against LTE-based mobile phones due to LTE's enhanced security mechanisms. However, in practice, it is possible to bypass these LTE security features, due to vulnerabilities in baseband software and in deployed LTE networks. In this talk, we build an LTE IMSI catcher and show how most popular phones fail when they are on LTE networks.