Описание
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.
A flaw was found in Moby. This flaw allows an attacker to bypass primary group restrictions due to a flaw in the supplementary group access setup.
Отчет
The vulnerability in Moby (Docker Engine) regarding supplementary group access is classified as low severity due to its limited impact and specific conditions for exploitation. The affected code is primarily a dependency for Golang in Red Hat products, and the vulnerable functionality is not widely used across different environments or configurations. Moreover, the exploitation requires direct access to a running container and manipulation of supplementary group settings, which narrows the attack vector. Additionally, the vulnerability does not directly compromise the host system or allow for remote code execution. Given these factors, the overall risk posed by this issue is considered low for most typical Docker deployments.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Migration Toolkit for Virtualization | migration-toolkit-virtualization/mtv-controller-rhel9 | Affected | ||
| OpenShift Developer Tools and Services | jenkins-operator-bundle-container | Affected | ||
| OpenShift Developer Tools and Services | jenkins-operator-container | Fix deferred | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/istio-cni-rhel8 | Not affected | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/istio-rhel8-operator | Not affected | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/pilot-rhel8 | Not affected | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/proxyv2-rhel8 | Not affected | ||
| Red Hat Advanced Cluster Management for Kubernetes 2 | rhacm2/agent-service-rhel8 | Not affected | ||
| Red Hat Advanced Cluster Management for Kubernetes 2 | rhacm2/assisted-installer-agent-rhel8 | Not affected | ||
| Red Hat Advanced Cluster Management for Kubernetes 2 | rhacm2/assisted-installer-reporter-rhel8 | Not affected |
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Дополнительная информация
Статус:
EPSS
6.3 Medium
CVSS3
Связанные уязвимости
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 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 is an open-source project created by Docker to enable software co ...
EPSS
6.3 Medium
CVSS3