Preventing Attacks From False Base Stations

摘要

Embodiments provide a user equipment (UE) device that includes a memory and a processor configured to execute instructions stored in said memory. The processor is configured by the instructions to receive a first evolved packet system (EPS) mobility management (EMM) attach reject message in response to an attempt to attach to a first eNode B (eNB) of a radio access network (RAN). If the attach reject message includes an Evolved Packet System mobility management (EMM) error code, the processor directs an attach request to a second, confirming eNB. The processor may be further configured by the instructions to receive a second attach reject message from the second eNB and enter a lock state only the condition that the second attach reject message also includes an EMM error code, optionally the same EMM error code received in the first attach reject message.

主权项

1. An apparatus, comprising:
a memory; and a processor configured to execute instructions stored in said memory that when executed configure the processor to:
receive a first evolved packet system (EPS) mobility management (EMM) attach reject message in response to an attempt to attach to a radio access network (RAN); andon the condition that said first attach reject message includes a first EMM error code, direct an attach request to a confirming eNode B (eNB).