CVE-2020-0556

bluez: Improper access control in subsystem could result in privilege escalation and DoS

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper access control in subsystem for BlueZ before version 5.54 may allow an unauthenticated user to potentially enable escalation of privilege and denial of service via adjacent access

El control de acceso incorrecto en el subsistema para BlueZ anterior a la versión 5.54 puede permitir que un usuario no autenticado permita potencialmente la escalada de privilegios y la denegación de servicio a través del acceso adyacente

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

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

2019-10-28 CVE Reserved
2020-03-12 CVE Published
2023-05-14 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-266: Incorrect Privilege Assignment

CAPEC

References (9)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2020/06/msg00008.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.html	2022-04-22

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00008.html	2022-04-22
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00055.html	2022-04-22
https://security.gentoo.org/glsa/202003-49	2022-04-22
https://usn.ubuntu.com/4311-1	2022-04-22
https://www.debian.org/security/2020/dsa-4647	2022-04-22
https://access.redhat.com/security/cve/CVE-2020-0556	2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1814293	2020-11-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bluez Search vendor "Bluez"		Bluez Search vendor "Bluez" for product "Bluez"				< 5.54 Search vendor "Bluez" for product "Bluez" and version " < 5.54"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.2 Search vendor "Opensuse" for product "Leap" and version "15.2"		-		Affected