Vulnerability identifier: #VU53585

Vulnerability risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-26560

CWE-ID: CWE-284

Exploitation vector: Local network

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 gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to an impersonation in the Mesh Provisioning procedure flaw. A remote attacker on the local network can spoof a device being provisioned, authenticate without the AuthValue and perform any operation permitted to a node provisioned on the subnet.

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?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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