CVE-2020-26559

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

El Bluetooth Mesh Provisioning en el perfil de Bluetooth Mesh versiones 1.0 y 1.0.1, puede permitir a un dispositivo cercano (que participe en el protocolo de aprovisionamiento) identificar el AuthValue usado dada la clave pública del Provisionador y el número de confirmación y el nonce proporcionado por el dispositivo de aprovisionamiento. Esto podría permitir a un dispositivo sin AuthValue completar el aprovisionamiento sin forzar el AuthValue por fuerza bruta

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-04 CVE Reserved
2021-05-24 CVE Published
2024-02-07 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-863: Incorrect Authorization

CAPEC

References (2)

URL	Tag	Source
https://kb.cert.org/vuls/id/799380	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security	2021-06-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bluetooth Search vendor "Bluetooth"		Mesh Profile Search vendor "Bluetooth" for product "Mesh Profile"				1.0.0 Search vendor "Bluetooth" for product "Mesh Profile" and version "1.0.0"		-		Affected
Bluetooth Search vendor "Bluetooth"		Mesh Profile Search vendor "Bluetooth" for product "Mesh Profile"				1.0.1 Search vendor "Bluetooth" for product "Mesh Profile" and version "1.0.1"		-		Affected