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CVE-2020-8561

Опубликовано: 15 сент. 2021
Источник: redhat
CVSS3: 4.1

Описание

A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.

A flaw was found in Kubernetes. This flaw allows an actor that controls the responses of the MutatingWebhookConfiguration or the ValidatingWebhookConfiguration requests to redirect kube-apiserver requests to the private network of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs, potentially revealing sensitive information in its responses.

Отчет

OpenShift Container Platform 4 does not support logging levels higher than 8 in the kube-apiserver (via the 'TraceAll' option), thereby making it not affected by this vulnerability. https://docs.openshift.com/container-platform/4.8/rest_api/operator_apis/kubeapiserver-operator-openshift-io-v1.html https://github.com/openshift/api/blob/release-4.8/operator/v1/types.go#L103

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat OpenShift Container Platform 3.11atomic-openshiftOut of support scope
Red Hat OpenShift Container Platform 4openshiftNot affected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-601
https://bugzilla.redhat.com/show_bug.cgi?id=2000366kubernetes: Webhook redirect in kube-apiserver

4.1 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.1
ubuntu
больше 3 лет назад

A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.

CVSS3: 4.1
nvd
больше 3 лет назад

A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.

CVSS3: 4.1
debian
больше 3 лет назад

A security issue was discovered in Kubernetes where actors that contro ...

CVSS3: 4.1
github
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Confused Deputy in Kubernetes

CVSS3: 4.1
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Уязвимость программного средства управления кластерами виртуальных машин Kubernetes, связанная с ошибками при обработке гипертекстовых ссылок, позволяющая нарушителю получить доступ к конфиденциальным данным

4.1 Medium

CVSS3