On Threats to the 5G Service Based Architecture

The 3GPP-based 5G System marks a clear departure form the previous generations. There is a new radio system and a complete overhaul of the core network design. The core network is redesigned both on the control plane parts and the transport plane. The control plane signalling within the core network is now largely based on the service based architecture (SBA) design, featuring Web-based technologies and the associated security solutions. In this paper we conduct a preliminary generic survey of threats to the SBA.