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CVE-2021-25736

Опубликовано: 10 мая 2021
Источник: redhat
CVSS3: 5.8

Описание

Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected.

A flaw was found in the Windows kube-proxy component. In a cloud environment that does not set the “.status.loadBalancer.ingress.ip” field in the LoadBalancer service status configuration (for example in AWS) the packets can be misrouted and reach an unintended destination.

Отчет

Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected.

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-200
https://bugzilla.redhat.com/show_bug.cgi?id=1946538kubernetes: LoadBalancer Service type don't create a HNS policy for empty or invalid external loadbalancer IP, what could lead to MITM

5.8 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.8
ubuntu
около 2 лет назад

Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected.

CVSS3: 5.8
nvd
около 2 лет назад

Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected.

CVSS3: 5.8
debian
около 2 лет назад

Kube-proxy on Windows can unintentionally forward traffic to local pr ...

CVSS3: 5.8
github
около 2 лет назад

Kube-proxy may unintentionally forward traffic

5.8 Medium

CVSS3