Garage Door Openers: A Rolling Code Protocol Case Study
- Resource Type
- Conference
- Authors
- Ghanem, Ahmed; AlTawy, Riham
- Source
- 2022 19th Annual International Conference on Privacy, Security & Trust (PST) Privacy, Security & Trust (PST), 2022 19th Annual International Conference on. :1-6 Aug, 2022
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Wireless communication
Codes
Force
Companies
Logic gates
Mobile applications
Security
Garage door openers
Rolling code
Keeloq
- Language
Rolling code is a keyless access protocol used prominently for garage doors and vehicles entry. In this work, we examine the security of three garage door opener systems which are widely used in the north American markets. Such openers are electronically controlled by wireless remotes and mobile applications. We reverse engineer their rolling code protocol and demonstrate practical attacks that enable an adversary to open the garage door after wirelessly sniffing only one open/close signal produced by the remote control device owner. Our security analysis reveals that such attacks are due to vulnerabilities in the deployment of the rolling code protocol in two out of the three investigated brands. Responsible disclosure procedures have been followed prior to the dissemination of our results.