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Main Authors: Oh, Taekkyung, Kim, Duckwoo, Bae, Hansung, Oh, Beomseok, Park, CheolJun, Tucker, Tyler, Bennett, Nathaniel, Bae, Sangwook, Hong, Byeongdo, Traynor, Patrick, Kim, Yongdae
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2605.19232
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author Oh, Taekkyung
Kim, Duckwoo
Bae, Hansung
Oh, Beomseok
Park, CheolJun
Tucker, Tyler
Bennett, Nathaniel
Bae, Sangwook
Hong, Byeongdo
Traynor, Patrick
Kim, Yongdae
author_facet Oh, Taekkyung
Kim, Duckwoo
Bae, Hansung
Oh, Beomseok
Park, CheolJun
Tucker, Tyler
Bennett, Nathaniel
Bae, Sangwook
Hong, Byeongdo
Traynor, Patrick
Kim, Yongdae
contents Fake Base Station (FBS) detection has been a critical focus of cellular security research for over two decades. However, significant financial and regulatory barriers to accessing commercial FBS (C-FBS) devices have limited direct visibility into real-world operations, forcing detection systems to be designed and evaluated around self-built prototypes. In this paper, we present Devilray, a reconfigurable and reference-grade adversarial baseline designed to systematically explore the realistic adversarial space and identify adversarial blind spots in current detection -- regions of realistic adversarial behavior excluded by prevailing threat models. We establish an empirical ground truth through the first academic analysis of a C-FBS and extend these observations into specification-driven operational variants permitted by 3GPP standards. Devilray enables the systematic exploration of 2,592 feasible and realistic FBS instances, capturing a wide range of operational possibilities. Using Devilray, we evaluate seven representative accessible FBS detectors and uncover coverage gaps across all seven, revealing blind spots rooted in assumption-bound design and evaluation. Our work provides the first robust adversarial model grounded in real-world behavior and specification analysis, enabling the community to develop and evaluate future detection mechanisms in a rigorous manner.
format Preprint
id arxiv_https___arxiv_org_abs_2605_19232
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Devilray: A Systematic Adversarial Model Revealing Blind Spots in Fake Base Station Detection
Oh, Taekkyung
Kim, Duckwoo
Bae, Hansung
Oh, Beomseok
Park, CheolJun
Tucker, Tyler
Bennett, Nathaniel
Bae, Sangwook
Hong, Byeongdo
Traynor, Patrick
Kim, Yongdae
Cryptography and Security
Fake Base Station (FBS) detection has been a critical focus of cellular security research for over two decades. However, significant financial and regulatory barriers to accessing commercial FBS (C-FBS) devices have limited direct visibility into real-world operations, forcing detection systems to be designed and evaluated around self-built prototypes. In this paper, we present Devilray, a reconfigurable and reference-grade adversarial baseline designed to systematically explore the realistic adversarial space and identify adversarial blind spots in current detection -- regions of realistic adversarial behavior excluded by prevailing threat models. We establish an empirical ground truth through the first academic analysis of a C-FBS and extend these observations into specification-driven operational variants permitted by 3GPP standards. Devilray enables the systematic exploration of 2,592 feasible and realistic FBS instances, capturing a wide range of operational possibilities. Using Devilray, we evaluate seven representative accessible FBS detectors and uncover coverage gaps across all seven, revealing blind spots rooted in assumption-bound design and evaluation. Our work provides the first robust adversarial model grounded in real-world behavior and specification analysis, enabling the community to develop and evaluate future detection mechanisms in a rigorous manner.
title Devilray: A Systematic Adversarial Model Revealing Blind Spots in Fake Base Station Detection
topic Cryptography and Security
url https://arxiv.org/abs/2605.19232