CVE-2020-35693

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

On some Samsung phones and tablets running Android through 7.1.1, it is possible for an attacker-controlled Bluetooth Low Energy (BLE) device to pair silently with a vulnerable target device, without any user interaction, when the target device's Bluetooth is on, and it is running an app that offers a connectable BLE advertisement. An example of such an app could be a Bluetooth-based contact tracing app, such as Australia's COVIDSafe app, Singapore's TraceTogether app, or France's TousAntiCovid (formerly StopCovid). As part of the pairing process, two pieces (among others) of personally identifiable information are exchanged: the Identity Address of the Bluetooth adapter of the target device, and its associated Identity Resolving Key (IRK). Either one of these identifiers can be used to perform re-identification of the target device for long term tracking. The list of affected devices includes (but is not limited to): Galaxy Note 5, Galaxy S6 Edge, Galaxy A3, Tab A (2017), J2 Pro (2018), Galaxy Note 4, and Galaxy S5.

En algunos teléfonos y tabletas de Samsung que ejecutan Android versiones hasta 7.1.1, es posible que un dispositivo Bluetooth Low Energy (BLE) controlado por un atacante se empareje silenciosamente con un dispositivo objetivo vulnerable, sin ninguna interacción del usuario, cuando el Bluetooth del dispositivo objetivo es activado. y lo ejecuta una aplicación que ofrece un anuncio BLE conectable. Un ejemplo de una aplicación de este tipo podría ser una aplicación de rastreo de contactos basada en Bluetooth, como la aplicación COVIDSafe de Australia, la aplicación TraceTogether de Singapur o TousAntiCovid de Francia (anteriormente StopCovid). Como parte del proceso de emparejamiento, se intercambian dos piezas (entre otras) de información de identificación personal: la dirección de identidad del adaptador Bluetooth del dispositivo de destino y su clave de resolución de identidad (IRK) asociada. Cualquiera de estos identificadores se puede utilizar para llevar a cabo una reidentificación del dispositivo objetivo para un rastreo a largo plazo. La lista de dispositivos afectados incluye (pero no se limita a): Galaxy Note 5, Galaxy S6 Edge, Galaxy A3, Tab A (2017), J2 Pro (2018), Galaxy Note 4 y Galaxy S5

*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

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-24 CVE Reserved
2020-12-24 CVE Published
2024-04-28 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://github.com/alwentiu/contact-tracing-research/blob/main/samsung.pdf	2024-08-04

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
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"	-	Affected	in	Samsung Search vendor "Samsung"	Galaxy A3 Search vendor "Samsung" for product "Galaxy A3"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"	-	Affected	in	Samsung Search vendor "Samsung"	Galaxy Note 4 Search vendor "Samsung" for product "Galaxy Note 4"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"	-	Affected	in	Samsung Search vendor "Samsung"	Galaxy Note 5 Search vendor "Samsung" for product "Galaxy Note 5"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"	-	Affected	in	Samsung Search vendor "Samsung"	Galaxy S5 Search vendor "Samsung" for product "Galaxy S5"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"	-	Affected	in	Samsung Search vendor "Samsung"	Galaxy S6 Edge Search vendor "Samsung" for product "Galaxy S6 Edge"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"	-	Affected	in	Samsung Search vendor "Samsung"	J2 Pro \(2018\) Search vendor "Samsung" for product "J2 Pro \(2018\)"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	<= 7.1.1 Search vendor "Google" for product "Android" and version " <= 7.1.1"	-	Affected	in	Samsung Search vendor "Samsung"	Tab A \(2017\) Search vendor "Samsung" for product "Tab A \(2017\)"	-	-	Safe