Vulnerability Description
Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bluetooth | Bluetooth Core Specification | >= 1.0b, <= 5.2 |
| Bluetooth | Mesh Profile | 1.0.0 |
Related Weaknesses (CWE)
References
- https://kb.cert.org/vuls/id/799380Third Party AdvisoryUS Government Resource
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-securitVendor Advisory
- https://www.kb.cert.org/vuls/id/799380Third Party AdvisoryUS Government Resource
- https://kb.cert.org/vuls/id/799380Third Party AdvisoryUS Government Resource
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-securitVendor Advisory
- https://www.kb.cert.org/vuls/id/799380Third Party AdvisoryUS Government Resource
FAQ
What is CVE-2020-26556?
CVE-2020-26556 is a vulnerability with a CVSS score of 7.5 (HIGH). Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning ...
How severe is CVE-2020-26556?
CVE-2020-26556 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26556?
Check the references section above for vendor advisories and patch information. Affected products include: Bluetooth Bluetooth Core Specification, Bluetooth Mesh Profile.