Published: 24/05/2021 Updated: 12/07/2022

CVSS v2 Base Score: 2.9 | Impact Score: 2.9 | Exploitability Score: 5.5

CVSS v3 Base Score: 7.5 | Impact Score: 5.9 | Exploitability Score: 1.6

VMScore: 259

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

Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (without possession of the AuthValue used in the provisioning protocol) to determine the AuthValue via a brute-force attack (unless the AuthValue is sufficiently random and changed each time).

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bluetooth mesh profile 1.0.0
bluetooth mesh profile 1.0.1

Debian Bug report logs - #1006406 BlueMirror mesh attacks - CVE-2020-26556, CVE-2020-26557, CVE-2020-26559, CVE-2020-26560 Package: src:bluez; Maintainer for src:bluez is Debian Bluetooth Maintainers <team+pkg-bluetooth@trackerdebianorg>; Reported by: Ben Hutchings <ben@decadentorguk> Date: Fri, 25 Feb 2022 02:30: ...

A flaw was found in the Linux kernel&rsquo;s Bluetooth Mesh Profile implementation The Mesh Provisioning procedure has a vulnerability that allows an attacker observing or taking part in the provisioning to brute force the AuthValue if it has a fixed value or is selected predictably or with low entropy If successful, an attacker can identify ...

Mesh Provisioning in the Bluetooth Mesh profile 10 and 101 may permit a nearby device (without possession of the AuthValue used in the provisioning protocol) to determine the AuthValue via a brute-force attack (unless the AuthValue is sufficiently random and changed each time) ...

CWE-287 https://kb.cert.org/vuls/id/799380 https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1006406 https://nvd.nist.gov https://access.redhat.com/security/cve/cve-2020-26557

CVE-2020-26557

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