Study on mitigations against bidding down Attacks
The present document focuses on mitigating bidding down attack, i.e. how to prevent UEs that are currently connected to LTE/5G from establishing a connection with a GERAN/UTRAN FBS considering for example the decommissioning of GERAN and UTRAN networks. In particular, the present document aims at:
- Identifying attack scenarios and threats in the context of decommissioning of GERAN and UTRAN networks, e.g. cell (re)selection or forced handovers on GERAN or UTRAN once LTE and 5G signalling are blocked when GERAN/UTRAN networks are decommissioned; and
- Documenting solutions for the identified security threats and requirements.