CVE-2021-20188
podman: container users permissions are not respected in privileged containers
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A flaw was found in podman before 1.7.0. File permissions for non-root users running in a privileged container are not correctly checked. This flaw can be abused by a low-privileged user inside the container to access any other file in the container, even if owned by the root user inside the container. It does not allow to directly escape the container, though being a privileged container means that a lot of security features are disabled when running the container. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Se encontró un fallo en podman versiones anteriores a 1.7.0. Los permisos de archivo para usuarios no root que se ejecutan en un contenedor con privilegios no se verifican correctamente. Un usuario con poco privilegiado dentro del contenedor puede abusar de este fallo para acceder a cualquier otro archivo en el contenedor, inclusive si es propiedad del usuario root dentro del contenedor. No permite escapar directamente del contenedor, aunque ser un contenedor privilegiado significa que muchas funciones de seguridad están deshabilitadas al ejecutar el contenedor. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos, así como la disponibilidad del sistema
A flaw was found in podman. File permissions for non-root users running in a privileged container are not correctly checked. This flaw can be abused by a low-privileged user inside the container to access any other file in the container, even if owned by the root user inside the container. It does not allow to directly escape the container, though being a privileged container means that a lot of security features are disabled when running the container. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-12-17 CVE Reserved
- 2021-02-11 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-863: Incorrect Authorization
CAPEC
References (2)
URL | Tag | Source |
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URL | Date | SRC |
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URL | Date | SRC |
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https://bugzilla.redhat.com/show_bug.cgi?id=1915734 | 2021-02-17 |
URL | Date | SRC |
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https://access.redhat.com/security/cve/CVE-2021-20188 | 2021-03-03 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Podman Project Search vendor "Podman Project" | Podman Search vendor "Podman Project" for product "Podman" | < 1.7.0 Search vendor "Podman Project" for product "Podman" and version " < 1.7.0" | - |
Affected
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Redhat Search vendor "Redhat" | Openshift Container Platform Search vendor "Redhat" for product "Openshift Container Platform" | 3.11 Search vendor "Redhat" for product "Openshift Container Platform" and version "3.11" | - |
Affected
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Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
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Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
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