Описание
A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.
Отчет
This flaw affects Windows Machine Config Operator (WMCO) with one or more Windows worker nodes. Clusters without Windows nodes or without WMCO installed are not affected. Red Hat Security Ratings classify this as High severity because successful exploitation yields highly sensitive node bootstrap and WICD credentials, but requires adjacent network positioning and favorable timing rather than direct remote exploitation of the Kubernetes API.
Меры по смягчению последствий
At this time, no mitigation or workaround is available for this vulnerability. Customers are advised to apply the appropriate updates as they become available.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat OpenShift Container Platform 4 | openshift4-wincw/windows-machine-config-rhel8-operator | Affected | ||
| Red Hat OpenShift Container Platform 4 | openshift4-wincw/windows-machine-config-rhel9-operator | Affected | ||
| Red Hat OpenShift for Windows Containers 10.22 | openshift4-wincw/windows-machine-config-rhel9-operator | Fixed | RHSA-2026:47173 | 28.07.2026 |
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Дополнительная информация
Статус:
8.3 High
CVSS3
Связанные уязвимости
A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.
A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.
8.3 High
CVSS3