Stute, Milan ; Narain, Sashank ; Mariotto, Alex ; Heinrich, Alexander ; Kreitschmann, David ; Noubir, Guevara ; Hollick, Matthias (2020)
A Billion Open Interfaces for Eve and Mallory : MitM, DoS, and Tracking Attacks on iOS and macOS Through Apple Wireless Direct Link.
28th USENIX Security Symposium (USENIX Security 19). Santa Clara, USA (14.-16.8.2019)
doi: 10.25534/tuprints-00013264
Conference or Workshop Item, Secondary publication, Publisher's Version
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Stute et al. - 2019 - A Billion Open Interfaces for Eve and Mallory MitM, DoS, and Tracking Attacks on iOS and macOS Through Apple Wi(2).pdf Copyright Information: CC BY 4.0 International - Creative Commons, Attribution. Download (10MB) | Preview |
Item Type: | Conference or Workshop Item |
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Type of entry: | Secondary publication |
Title: | A Billion Open Interfaces for Eve and Mallory : MitM, DoS, and Tracking Attacks on iOS and macOS Through Apple Wireless Direct Link |
Language: | English |
Date: | 30 November 2020 |
Place of Publication: | Darmstadt |
Year of primary publication: | 2019 |
Place of primary publication: | Berkeley, CA |
Publisher: | USENIX Association |
Book Title: | Proceedings of the 28th USENIX Security Symposium |
Event Title: | 28th USENIX Security Symposium (USENIX Security 19) |
Event Location: | Santa Clara, USA |
Event Dates: | 14.-16.8.2019 |
DOI: | 10.25534/tuprints-00013264 |
Corresponding Links: | |
Origin: | Secondary publication service |
Abstract: | Apple Wireless Direct Link (AWDL) is a key protocol in Apple's ecosystem used by over one billion iOS and macOS devices for device-to-device communications. AWDL is a proprietary extension of the IEEE 802.11 (Wi-Fi) standard and integrates with Bluetooth Low Energy (BLE) for providing services such as Apple AirDrop. We conduct the first security and privacy analysis of AWDL and its integration with BLE. We uncover several security and privacy vulnerabilities ranging from design flaws to implementation bugs leading to a man-in-the-middle (MitM) attack enabling stealthy modification of files transmitted via AirDrop, denial-of-service (DoS) attacks preventing communication, privacy leaks that enable user identification and long-term tracking undermining MAC address randomization, and DoS attacks enabling targeted or simultaneous crashing of all neighboring devices. The flaws span across AirDrop's BLE discovery mechanism, AWDL synchronization, UI design, and Wi-Fi driver implementation. Our analysis is based on a combination of reverse engineering of protocols and code supported by analyzing patents. We provide proof-of-concept implementations and demonstrate that the attacks can be mounted using a low-cost ($20) micro:bit device and an off-the-shelf Wi-Fi card. We propose practical and effective countermeasures. While Apple was able to issue a fix for a DoS attack vulnerability after our responsible disclosure, the other security and privacy vulnerabilities require the redesign of some of their services. |
Status: | Publisher's Version |
URN: | urn:nbn:de:tuda-tuprints-132644 |
Classification DDC: | 000 Generalities, computers, information > 004 Computer science |
Divisions: | 20 Department of Computer Science > Sichere Mobile Netze Profile Areas > Cybersecurity (CYSEC) LOEWE > LOEWE-Schwerpunkte > NiCER – Networked infrastructureless Cooperation for Emergency Response LOEWE > LOEWE-Zentren > CRISP - Center for Research in Security and Privacy |
Date Deposited: | 30 Nov 2020 12:20 |
Last Modified: | 20 Oct 2023 11:04 |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/13264 |
PPN: | 474394581 |
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