CVE-2020-26556 Information

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 Vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://kb.cert.org/vuls/id/799380 https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ https://www.kb.cert.org/vuls/id/799380

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5