CVE-2020-27352

Severity Score

9.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.

Al generar las unidades de servicio systemd para el complemento de Docker (y otros complementos similares), snapd no especifica Delegate=yes; como resultado, systemd moverá los procesos de los contenedores creados y administrados por estos complementos al grupo c del daemon principal dentro del se rompe al recargar las unidades del sistema. Esto puede otorgar privilegios adicionales a un contenedor dentro del complemento que no estaban previstos originalmente.

*Credits: Gilad Reti, Nimrod Stoler

CVSS Scores

Canonical Ltd.v3.1 9.3

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2020-10-20 CVE Reserved
2021-02-10 CVE Published
2024-06-22 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-269: Improper Privilege Management

CAPEC

References (3)

URL	Tag	Source
https://bugs.launchpad.net/snapd/+bug/1910456	Issue Tracking
https://www.cve.org/CVERecord?id=CVE-2020-27352	Issue Tracking

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://ubuntu.com/security/notices/USN-4728-1	2024-07-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Ltd. Search vendor "Canonical Ltd."		Snapd Search vendor "Canonical Ltd." for product "Snapd"				< 2.48.3 Search vendor "Canonical Ltd." for product "Snapd" and version " < 2.48.3"		en		Affected