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.
CVE-2020-8559 - Medium Severity Vulnerability
Vulnerable Library - github.com/kubernetes/apimachinery-v0.17.0
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Library home page: https://proxy.golang.org/github.com/kubernetes/apimachinery/@v/v0.17.0.zip
Dependency Hierarchy: - :x: **github.com/kubernetes/apimachinery-v0.17.0** (Vulnerable Library)
Found in base branch: master
Vulnerability Details
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.
Publish Date: 2020-07-22
URL: CVE-2020-8559
CVSS 3 Score Details (6.8)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: High - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2020-08-10
Fix Resolution: v1.18.6,v1.17.9,v1.16.13
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