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CVE-2021-25736

Опубликовано: 10 мая 2021
Источник: redhat
CVSS3: 5.8
EPSS Низкий

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

EPSS

Процентиль: 32%
0.0012
Низкий

5.8 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.8
ubuntu
больше 1 года 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
больше 1 года 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
больше 1 года назад

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

CVSS3: 5.8
github
больше 1 года назад

Kube-proxy may unintentionally forward traffic

EPSS

Процентиль: 32%
0.0012
Низкий

5.8 Medium

CVSS3