Vulnerability identifier: #VU53581

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-26556

CWE-ID: CWE-287

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Bluetooth Mesh profile
Other software / Other software solutions

Vendor: Bluetooth SIG, Inc.

Description

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists due to a flaw in the authentication protocol. An attacker with physical access can identify the AuthValue used before the provisioning procedure times out, complete the provisioning operation and obtain a NetKey.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Bluetooth Mesh profile: 1.0 - 1.0.1

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

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.