CVE-2020-26556

high

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.

References

https://www.kb.cert.org/vuls/id/799380

https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/

https://kb.cert.org/vuls/id/799380

Details

Source: Mitre, NVD

Published: 2021-05-24

Updated: 2022-04-29

Risk Information

CVSS v2

Base Score: 2.9

Vector: CVSS2#AV:A/AC:M/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High