Open Redirect Affecting kubeadm package, versions <0:1.12.10-1.0.13.el7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-ORACLE7-KUBEADM-2575645
  • published10 Apr 2022
  • disclosed22 Jul 2020

Introduced: 22 Jul 2020

CVE-2020-8559  (opens in a new tab)
CWE-601  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kubeadm to version 0:1.12.10-1.0.13.el7 or higher.
This issue was patched in ELSA-2020-5767.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubeadm package and not the kubeadm package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on proxied upgrade requests that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.

CVSS Scores

version 3.1