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GHSA-33c5-9fx5-fvjm: Privilege Escalation in Kubernetes

The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.7 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.

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  1. GitHub Advisory Database
  2. GitHub Reviewed
  3. CVE-2020-8559

Privilege Escalation in Kubernetes

Moderate severity GitHub Reviewed Published Apr 24, 2024 to the GitHub Advisory Database • Updated Apr 24, 2024

Package

gomod k8s.io/apimachinery (Go)

Affected versions

< 1.16.13

>= 1.17.0, < 1.17.9

>= 1.18.0, < 1.18.7

Patched versions

1.16.13

1.17.9

1.18.7

Description

Published to the GitHub Advisory Database

Apr 24, 2024

Last updated

Apr 24, 2024

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CVE-2020-8559: CVE-2020-8559: Privilege escalation from compromised node to cluster · Issue #92914 · kubernetes/kubernetes

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.