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[email protected]NVD:CVE-2020-26559

HistoryMay 24, 2021 - 6:15 p.m.

CVE-2020-26559

2021-05-2418:15:07

CWE-863

[email protected]

web.nvd.nist.gov

bluetooth

mesh

provisioning

vulnerability

authvalue

public key

CVSS2

5.8

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:A/AC:L/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

32.1%

JSON

Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (participating in the provisioning protocol) to identify the AuthValue used given the Provisioner’s public key, and the confirmation number and nonce provided by the provisioning device. This could permit a device without the AuthValue to complete provisioning without brute-forcing the AuthValue.

Affected configurations

Nvd

Node

bluetoothmesh_profileMatch1.0.0

bluetoothmesh_profileMatch1.0.1

VendorProductVersionCPE
bluetoothmesh_profile1.0.0cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:*
bluetoothmesh_profile1.0.1cpe:2.3:a:bluetooth:mesh_profile:1.0.1:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
bluetooth	mesh_profile	1.0.0	cpe:2.3:a:bluetooth:mesh_profile:1.0.0:::::::*
bluetooth	mesh_profile	1.0.1	cpe:2.3:a:bluetooth:mesh_profile:1.0.1:::::::*