CVE-2020-8559 MEDIUM

CVE-2020-8559: Privilege escalation from compromised node to cluster

Vendor Kubernetes
Product Kubernetes
Weakness CWE-601 · Open redirect
Published July 22, 2020
Last update September 16, 2024
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 22, 2020 CVE published
September 16, 2024 Record updated