CVE-2020-35693

Public Exploit

Description

On some Samsung phones and tablets running Android through 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.

8.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.04%

Third-Party Advisory github.com

Affected: n/a n/a

References

Link	Tags
https://github.com/alwentiu/contact-tracing-research/blob/main/samsung.pdf	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-35693?: CVE-2020-35693 has been scored as a high severity vulnerability.
How to fix CVE-2020-35693?: To fix CVE-2020-35693, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-35693 being actively exploited in the wild?: It is possible that CVE-2020-35693 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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