Study on security aspects of enablers for Network Automation (eNA) for the 5G system (5GS) Phase 2
The present document studies the security aspects of enablers for network automation for the 5G system based on the outcome of TR 23.700-91 [1]. More specifically, the present document identifies security issues, requirements and corresponding potential security solutions related to the following objectives:
- UE data collection protection to fulfil the NWDAF functionalities including privacy consideration, data authenticity, data integrity, and accessibility aspects requirements.
- Detection of cyber-attacks and anomaly events supported by NWDAF and its related functions, specifically to identify parameters provided by UE and NFs, which can help to detect attacks and abnormal behaviours;
- Protection of data transferring (e.g. privacy consideration) in the inter-NWDAF/NWDAF instances.
NOTE: The user consent for UE data collection is not addressed in the present document, it will be discussed in TR 33.867 [2].