CVE Vulnerability

CVE-2020-8561

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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

4.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY Mailing List Mitigation
https://github.com/kubernetes/kubernetes/issues/104720 Mitigation Third Party Advisory
https://security.netapp.com/advisory/ntap-20211014-0002/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:kubernetes:kubernetes:1.20.11:-:*:*:*:*:*:*
cpe:2.3:a:kubernetes:kubernetes:1.21.5:-:*:*:*:*:*:*
cpe:2.3:a:kubernetes:kubernetes:1.22.2:-:*:*:*:*:*:*
Information

Published : 2021-09-20 05:15

Updated : 2021-11-06 03:04

NVD link : CVE-2020-8561

Mitre link : CVE-2020-8561

Products Affected
No products.
CWE
CWE-610