CVE-2021-34150

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Bluetooth Classic implementation on Bluetrum AB5301A devices with unknown firmware versions does not properly handle the reception of oversized DM1 LMP packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections (disabling the AB5301A inquiry and page scan procedures) via a crafted LMP packet. The user needs to manually perform a power cycle (restart) of the device to restore BT connectivity.

Una implementación de Bluetooth Classic en los dispositivos Bluetrum AB5301A con versiones de firmware desconocidas no maneja apropiadamente la recepción de paquetes LMP DM1 de gran tamaño mientras no presenta otras conexiones BT activas, permitiendo a atacantes en el rango de radio impedir nuevas conexiones BT (deshabilitando los procedimientos de consulta y exploración de páginas del AB5301A) por medio de un paquete LMP diseñado. El usuario necesita llevar a cabo manualmente un ciclo de alimentación (reinicio) del dispositivo para restaurar la conectividad BT

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-06-07 CVE Reserved
2021-09-03 CVE Published
2024-05-23 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf	Technical Description

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.bluetrum.com/product/ab5301a.html	2021-09-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bluetrum Search vendor "Bluetrum"	Ab5301a Firmware Search vendor "Bluetrum" for product "Ab5301a Firmware"	-	-	Affected	in	Bluetrum Search vendor "Bluetrum"	Ab5301a Search vendor "Bluetrum" for product "Ab5301a"	-	-	Safe