CVE-2020-15802

Description

Devices supporting Bluetooth before 5.1 may allow man-in-the-middle attacks, aka BLURtooth. Cross Transport Key Derivation in Bluetooth Core Specification v4.2 and v5.0 may permit an unauthenticated user to establish a bonding with one transport, either LE or BR/EDR, and replace a bonding already established on the opposing transport, BR/EDR or LE, potentially overwriting an authenticated key with an unauthenticated key, or a key with greater entropy with one with less.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 56.59% Top 5%
Vendor Advisory bluetooth.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.kb.cert.org/vuls/id/589825 third party advisory us government resource
https://gizmodo.com/bluetooth-unveils-its-latest-security-issue-with-no-se-1845013709 third party advisory
https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/blurtooth/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15802?
CVE-2020-15802 has been scored as a medium severity vulnerability.
How to fix CVE-2020-15802?
To fix CVE-2020-15802, 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-2020-15802 being actively exploited in the wild?
It is possible that CVE-2020-15802 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~57% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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