// For flags

CVE-2022-36109

Moby vulnerability relating to supplementary group permissions

Severity Score

6.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where supplementary groups are not set up properly. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases, potentially gaining access to sensitive information or gaining the ability to execute code in that container. This bug is fixed in Moby (Docker Engine) 20.10.18. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade, this problem can be worked around by not using the `"USER $USERNAME"` Dockerfile instruction. Instead by calling `ENTRYPOINT ["su", "-", "user"]` the supplementary groups will be set up properly.

Moby es un proyecto de código abierto creado por Docker para permitir una contención de software. Ha sido encontrado un bug en Moby (Docker Engine) en el que los grupos complementarios no son configurados apropiadamente. Si un atacante presenta acceso directo a un contenedor y manipula su acceso a grupos suplementarios, puede ser capaz de usar el acceso a grupos suplementarios para omitir las restricciones de grupos primarios en algunos casos, obteniendo potencialmente acceso a información confidencial o ganando la capacidad de ejecutar código en ese contenedor. Este error ha sido corregido en Moby (Docker Engine) versión 20.10.18. Los contenedores en ejecución deben ser detenidos y reiniciados para que los permisos sean corregidos. Para usuarios que no puedan actualizar, este problema puede mitigarse al no usar la instrucción ""USER $USERNAME"" de Dockerfile. En su lugar, llamando a "ENTRYPOINT ["su", "-", "user"]" los grupos complementarios serán configurados apropiadamente

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-07-15 CVE Reserved
  • 2022-09-09 CVE Published
  • 2024-06-28 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-863: Incorrect Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mobyproject
Search vendor "Mobyproject"
Moby
Search vendor "Mobyproject" for product "Moby"
< 20.10.18
Search vendor "Mobyproject" for product "Moby" and version " < 20.10.18"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
36
Search vendor "Fedoraproject" for product "Fedora" and version "36"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
37
Search vendor "Fedoraproject" for product "Fedora" and version "37"
-
Affected