Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bluetooth | Bluetooth Core Specification | < 5.1 |
Related Weaknesses (CWE)
References
- https://gizmodo.com/bluetooth-unveils-its-latest-security-issue-with-no-se-18450Third Party Advisory
- https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-sVendor Advisory
- https://www.kb.cert.org/vuls/id/589825Third Party AdvisoryUS Government Resource
- https://gizmodo.com/bluetooth-unveils-its-latest-security-issue-with-no-se-18450Third Party Advisory
- https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-sVendor Advisory
- https://www.kb.cert.org/vuls/id/589825Third Party AdvisoryUS Government Resource
FAQ
What is CVE-2020-15802?
CVE-2020-15802 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 u...
How severe is CVE-2020-15802?
CVE-2020-15802 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15802?
Check the references section above for vendor advisories and patch information. Affected products include: Bluetooth Bluetooth Core Specification.