Technical Advisory – Kwikset/Weiser BLE Proximity Authentication in Kevo Smart Locks Vulnerable to Relay Attacks

Vendor: Kwikset/Weiser (Spectrum Brands) Vendor URLs: https://www.kwikset.com/kevo/smart-lock, https://www.weiserlock.com/en/kevo/default Versions Affected: All versions. Attack tested on Kevo Generation 2 hardware with firmware v1.9.49 and Android application version Kevo 2.9.1.21765p. Systems Affected: Kevo smart locks, including Kevo Contemporary Author: Sultan Qasim Khan Risk: <6.8 CVSS v3.1 AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N> - An attacker within BLE signal range of a smartphone … Continue reading Technical Advisory – Kwikset/Weiser BLE Proximity Authentication in Kevo Smart Locks Vulnerable to Relay Attacks

Technical Advisory – Tesla BLE Phone-as-a-Key Passive Entry Vulnerable to Relay Attacks

Vendor: Tesla, Inc. Vendor URL: https://www.tesla.com Versions affected: Attack tested with vehicle software v11.0 (2022.8.2 383989fadeea) and iOS app 4.6.1-891 (3784ebe63). Systems Affected: Attack tested on Model 3. Model Y is likely also affected. Author: Sultan Qasim Khan <sultan.qasimkhan[at]nccgroup[dot]com> Risk: <6.8 CVSS v3.1 AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N> An attacker within Bluetooth signal range of a mobile device configured … Continue reading Technical Advisory – Tesla BLE Phone-as-a-Key Passive Entry Vulnerable to Relay Attacks

Technical Advisory – BLE Proximity Authentication Vulnerable to Relay Attacks

Vendor: Bluetooth SIG, Inc. Vendor URL: https://www.bluetooth.com Versions Affected: Specification versions 4.0 to 5.3 Systems Affected: Any systems relying on the presence of a Bluetooth LE connection as confirmation of physical proximity, regardless of whether link layer encryption is used Author: <Sultan Qasim Khan> <sultan.qasimkhan[at]nccgroup[dot]com> Risk: An attacker can falsely indicate the proximity of Bluetooth … Continue reading Technical Advisory – BLE Proximity Authentication Vulnerable to Relay Attacks