KAIST Graduate School of Information Security

[세미나] Finging and Fixing Security Vulnerabilities in Network Structures - 강민석 교수 (KAIST)
작성일2020-10-05
금일 저희 정보보호대학원에서는 KAIST 강민석 교수님을 모시고 "Finging and Fixing Security Vulnerabilities in Network Structures" 주제로 아래와 같이 세미나를 개최하고자 합니다. 코로나19 확산방지를 위하여 원격수업으로(ZOOM) 진행할 예정입니다. = 아 래 = o 일시 - 20.9.8(화) 16:00~ ※ 시작시간 5분전에 준비하여 주세요. URL: https://zoom.us/j/2902905410 접속 비밀번호: e-mail 공지 ============================== Title: Finding and Fixing Security Vulnerabilities in Network Structures Abstract: The knowledge of network architecture and protocol structure of emerging network systems can be extremely useful for strong and stealthy attacks. In this talk, I will present two such recent examples. First, I will present our recent, powerful Bitcoin partitioning attack (IEEE S&P 2020), called an Erebus attack. The Erebus attack partitions the Bitcoin network without any routing manipulations, making the attack undetectable to control-plane and even to data-plane detectors. I will discuss how we have been collaborating with the Bitcoin Core team to address this attack and introduce a remaining open problem. In the second part of the talk, I will introduce our recent discovery of a new side channel vulnerability in modern cellular networks that enables unauthorized passive adversaries to accurately infer mobile users' location. We show that one fundamental technique used in all 4G/5G systems, called carrier aggregation, leaks location specific information of mobile users. We demonstrate this location inference attack on LTE networks in Singapore (e.g., 98.4％ of path-identification accuracy among 100 different paths in an office building). Bio: Min Suk is an Assistant Professor, School of Computing at KAIST since August 2020. Before joining KAIST, Min Suk had been an Assistant Professor of Computer Science Department, School of Computing at National University of Singapore since 2016. His research interests lie in the field of network and distributed systems security, blockchain security, and wireless network security. He obtained his PhD degree in Electrical and Computer Engineering from Carnegie Mellon University in 2016 under the supervision of Virgil D. Gligor in CyLab. He received BS and MS degrees in EECS at Korea Advanced Institute of Science and Technology (KAIST) in 2006 and 2008, respectively. =============================

[세미나] Finging and Fixing Security Vulnerabilities in Network Structures - 강민석 교수 (KAIST)

작성일2020-10-05

금일 저희 정보보호대학원에서는 KAIST 강민석 교수님을 모시고

"Finging and Fixing Security Vulnerabilities in Network Structures" 주제로 아래와 같이 세미나를 개최하고자 합니다.

코로나19 확산방지를 위하여 원격수업으로(ZOOM) 진행할 예정입니다.

= 아 래 =

o 일시

- 20.9.8(화) 16:00~

※ 시작시간 5분전에 준비하여 주세요.

URL: https://zoom.us/j/2902905410

접속 비밀번호: e-mail 공지

==============================

Title: Finding and Fixing Security Vulnerabilities in Network Structures

Abstract:

The knowledge of network architecture and protocol structure of emerging network systems can be extremely useful for strong and stealthy attacks. In this talk, I will present two such recent examples. First, I will present our recent, powerful Bitcoin partitioning attack (IEEE S&P 2020), called an Erebus attack. The Erebus attack partitions the Bitcoin network without any routing manipulations, making the attack undetectable to control-plane and even to data-plane detectors. I will discuss how we have been collaborating with the Bitcoin Core team to address this attack and introduce a remaining open problem. In the second part of the talk, I will introduce our recent discovery of a new side channel vulnerability in modern cellular networks that enables unauthorized passive adversaries to accurately infer mobile users' location. We show that one fundamental technique used in all 4G/5G systems, called carrier aggregation, leaks location specific information of mobile users. We demonstrate this location inference attack on LTE networks in Singapore (e.g., 98.4％ of path-identification accuracy among 100 different paths in an office building).

Bio:

Min Suk is an Assistant Professor, School of Computing at KAIST since August 2020. Before joining KAIST, Min Suk had been an Assistant Professor of Computer Science Department, School of Computing at National University of Singapore since 2016. His research interests lie in the field of network and distributed systems security, blockchain security, and wireless network security. He obtained his PhD degree in Electrical and Computer Engineering from Carnegie Mellon University in 2016 under the supervision of Virgil D. Gligor in CyLab. He received BS and MS degrees in EECS at Korea Advanced Institute of Science and Technology (KAIST) in 2006 and 2008, respectively.

=============================

목록으로