Stute, Milan ; Heinrich, Alexander ; Lorenz, Jannik ; Hollick, Matthias (2022):
Disrupting Continuity of Apple’s Wireless Ecosystem Security: New Tracking, DoS, and MitM Attacks on iOS and macOS Through Bluetooth Low Energy, AWDL, and Wi-Fi. (Publisher's Version)
In: Proceedings of the 30th USENIX Security Symposium, pp. 3917-3934,
Darmstadt, USENIX Association, 30th USENIX Security Symposium (USENIX Security 21), Virtual event, 11.-13.08.2021, ISBN 978-1-939133-24-3,
DOI: 10.26083/tuprints-00020603,
[Conference or Workshop Item]
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Item Type: | Conference or Workshop Item |
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Origin: | Secondary publication service |
Status: | Publisher's Version |
Title: | Disrupting Continuity of Apple’s Wireless Ecosystem Security: New Tracking, DoS, and MitM Attacks on iOS and macOS Through Bluetooth Low Energy, AWDL, and Wi-Fi |
Language: | English |
Abstract: | Apple controls one of the largest mobile ecosystems, with 1.5 billion active devices worldwide, and offers twelve proprietary wireless Continuity services. Previous works have unveiled several security and privacy issues in the involved protocols. These works extensively studied AirDrop while the coverage of the remaining vast Continuity service space is still low. To facilitate the cumbersome reverse-engineering process, we describe the first guide on how to approach a structured analysis of the involved protocols using several vantage points available on macOS. Also, we develop a toolkit to automate parts of this otherwise manual process. Based on this guide, we analyze the full protocol stacks involved in three Continuity services, in particular, Handoff (HO), Universal Clipboard (UC), and Wi-Fi Password Sharing (PWS). We discover several vulnerabilities spanning from Bluetooth Low Energy (BLE) advertisements to Apple's proprietary authentication protocols. These flaws allow for device tracking via HO's mDNS responses, a denial-of-service (DoS) attack on HO and UC, a DoS attack on PWS that prevents Wi-Fi password entry, and a machine-in-the-middle (MitM) attack on PWS that connects a target to an attacker-controlled Wi-Fi network. Our PoC implementations demonstrate that the attacks can be mounted using affordable off-the-shelf hardware ($20 micro:bit and a Wi-Fi card). Finally, we suggest practical mitigations and share our findings with Apple, who have started to release fixes through iOS and macOS updates. |
Book Title: | Proceedings of the 30th USENIX Security Symposium |
Place of Publication: | Darmstadt |
Publisher: | USENIX Association |
Classification DDC: | 000 Allgemeines, Informatik, Informationswissenschaft > 004 Informatik |
Divisions: | 20 Department of Computer Science > Sichere Mobile Netze Profile Areas > Cybersecurity (CYSEC) LOEWE > LOEWE-Zentren > emergenCITY |
Event Title: | 30th USENIX Security Symposium (USENIX Security 21) |
Event Location: | Virtual event |
Event Dates: | 11.-13.08.2021 |
Date Deposited: | 15 Jun 2022 12:14 |
Last Modified: | 14 Dec 2022 12:00 |
DOI: | 10.26083/tuprints-00020603 |
Corresponding Links: | |
URN: | urn:nbn:de:tuda-tuprints-206039 |
Additional Information: | Presentation: 27 slides Presentation video: https://youtu.be/6dUqEA5MVBQ |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/20603 |
PPN: | 496563394 |
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