2G에서부터 5G 이동 통신 시대까지 허위 기지국 공격의 위협은 이어져 왔다. 허위 기지국은 정상 기지국으로 위장하여 사용자의 정보를 수집하거나 서비스 거부 공격 등을 수행하는 기지국을 말한다. 바로 이전 세대인 LTE에서는 가짜 재난문자, 멀웨어 전파, Device Bidding Down 공격 등의 사례가 발표 또는 보고되었다. 5G에서도 LTE의 공격 사례와 같은 공격들이 발생할 수 있어 이에 대한 보안 대책이 연구될 필요가 있다. 현재 3GPP TR 33.809 문서에서 5G에서의 허위기지국 관련 주요 이슈와 솔루션들이 논의되고 있다. 본 논문에서는 TR 33.809 문서를 바탕으로 5G의 보안을 위한 허위기지국 대응에 대한 주요 이슈들을 중심으로 분석한다.
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