New 5G Flaw Exposes Priority Networks to Location Tracking and Other Attacks
Mar 26, 2021
New research into 5G architecture has uncovered a security flaw in its network slicing and virtualized network functions that could be exploited to allow data access and denial of service attacks between different network slices on a mobile operator's 5G network. AdaptiveMobile shared its findings with the GSM Association (GSMA) on February 4, 2021, following which the weaknesses were collectively designated as CVD-2021-0047. 5G is an evolution of current 4G broadband cellular network technology, and is based on what's called a service-based architecture (SBA) that provides a modular framework to deploy a set of interconnected network functions, allowing consumers to discover and authorize their access to a plethora of services. The network functions are also responsible for registering subscribers, managing sessions and subscriber profiles, storing subscriber data, and connecting the users (UE or user equipment) to the internet via a base station (gNB). What's more, ...
