Open Redirect Affecting k3s package, versions <1.18.6.1-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-ALPINE319-K3S-6109576
  • published8 Dec 2023
  • 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 Alpine:3.19 k3s to version 1.18.6.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream k3s package and not the k3s package as distributed by Alpine. See How to fix? for Alpine:3.19 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