CVE-2020-8561

MEDIUM4.1EPSS 0.18%

Confused Deputy in Kubernetes

發布日:2021/9/21修改日:2026/2/4

也稱為:GHSA-74j8-88mm-7496CGA-73pm-7j6q-74x4

描述

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.

受影響套件(2)

Debian/kubernetesfrom 0, < 1.20.5+really1.20.2-1
Go/k8s.io/kubernetesfrom 0, <= 1.22.2

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	MEDIUM4.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

參考連結(6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-8561
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-8561
PATCHhttps://github.com/kubernetes/kubernetes
WEBhttps://github.com/kubernetes/kubernetes/issues/104720
WEBhttps://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY
WEBhttps://security.netapp.com/advisory/ntap-20211014-0002