5.4
CVSSv2

CVE-2020-35693

Published: 24/12/2020 Updated: 31/12/2020
CVSS v2 Base Score: 5.4 | Impact Score: 6.4 | Exploitability Score: 5.5
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 481
Vector: AV:A/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Summary

On some Samsung phones and tablets running Android up to and including 7.1.1, it is possible for an attacker-controlled Bluetooth Low Energy (BLE) device to pair silently with a vulnerable target device, without any user interaction, when the target device's Bluetooth is on, and it is running an app that offers a connectable BLE advertisement. An example of such an app could be a Bluetooth-based contact tracing app, such as Australia's COVIDSafe app, Singapore's TraceTogether app, or France's TousAntiCovid (formerly StopCovid). As part of the pairing process, two pieces (among others) of personally identifiable information are exchanged: the Identity Address of the Bluetooth adapter of the target device, and its associated Identity Resolving Key (IRK). Either one of these identifiers can be used to perform re-identification of the target device for long term tracking. The list of affected devices includes (but is not limited to): Galaxy Note 5, Galaxy S6 Edge, Galaxy A3, Tab A (2017), J2 Pro (2018), Galaxy Note 4, and Galaxy S5.

Vulnerability Trend

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Github Repositories

Bluetooth and contact tracing research COVIDSafe and related applications : A remote crash exploit on COVIDSafe 20 (Android) CVE-2020-14292 Identity address leakage through bluetooth transport CVE-2020-12856 A silent pairing issue affecting the Android version of COVIDSafe app v117 and earlier versions Joint work with Jim Mussared Apple/Google Exposure Notifications F