Описание
A flaw was discovered in OpenShift Container Platform 4 where, by default, users with access to create pods also have the ability to schedule workloads on master nodes. Pods with permission to access the host network, running on master nodes, can retrieve security credentials for the master AWS IAM role, allowing management access to AWS resources. With access to the security credentials, the user then has access to the entire infrastructure. Impact to data and system availability is high.
Меры по смягчению последствий
Do not run untrusted workloads with hostnetwork access on master nodes.
If additional workloads are run on master hosts, use caution when providing access to hostnetwork. A workload that runs hostnetwork on a master host is effectively root on the cluster and must be trusted accordingly.
https://docs.openshift.com/container-platform/4.4/authentication/managing-security-context-constraints.html
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat OpenShift Container Platform 4 | openshift4/ose-cluster-kube-apiserver-operator | Affected |
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Дополнительная информация
Статус:
EPSS
7.2 High
CVSS3
Связанные уязвимости
A flaw was discovered in OpenShift Container Platform 4 where, by default, users with access to create pods also have the ability to schedule workloads on master nodes. Pods with permission to access the host network, running on master nodes, can retrieve security credentials for the master AWS IAM role, allowing management access to AWS resources. With access to the security credentials, the user then has access to the entire infrastructure. Impact to data and system availability is high.
A flaw was discovered in OpenShift Container Platform 4 where, by default, users with access to create pods also have the ability to schedule workloads on master nodes. Pods with permission to access the host network, running on master nodes, can retrieve security credentials for the master AWS IAM role, allowing management access to AWS resources. With access to the security credentials, the user then has access to the entire infrastructure. Impact to data and system availability is high.
EPSS
7.2 High
CVSS3