CVE-2020-35473

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core Specifications 4.0 through 5.2, and extended scan response in Bluetooth Core Specifications 5.0 through 5.2, may be used to identify devices using Resolvable Private Addressing (RPA) by their response or non-response to specific scan requests from remote addresses. RPAs that have been associated with a specific remote device may also be used to identify a peer in the same manner by using its reaction to an active scan request. This has also been called an allowlist-based side channel.

Se puede utilizar una vulnerabilidad de fuga de información en la respuesta de escaneo de publicidad de Bluetooth Low Energy en las Especificaciones principales de Bluetooth 4.0 a 5.2, y la respuesta de escaneo extendida en las Especificaciones principales de Bluetooth 5.0 a 5.2, para identificar dispositivos que usan Resolvable Private Addressing (RPA) por su respuesta o no-respuesta a solicitudes de escaneo específicas desde direcciones remotas. Los RPA que se han asociado con un dispositivo remoto específico también se pueden usar para identificar a un par de la misma manera mediante su reacción a una solicitud de escaneo activo. A esto también se le ha denominado canal lateral basado en listas permitidas.

*Credits: N/A

CVSS Scores

NISTv3.1 4.3

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-16 CVE Reserved
2022-11-08 CVE Published
2024-05-31 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-203: Observable Discrepancy
CWE-294: Authentication Bypass by Capture-replay

CAPEC

References (2)

URL	Tag	Source
https://dl.acm.org/doi/10.1145/3548606.3559372	Technical Description
https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.html	Technical Description

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bluetooth Search vendor "Bluetooth"		Bluetooth Core Specification Search vendor "Bluetooth" for product "Bluetooth Core Specification"				>= 4.0 <= 5.2 Search vendor "Bluetooth" for product "Bluetooth Core Specification" and version " >= 4.0 <= 5.2"		-		Affected