Privilege escalation from compromised node to cluster (Kubernetes Kubernetes)

CVE-2020-8559
MEDIUM 6.4

At a glance

Source
NVD
EPSS
EPSS 6.10 % · percentile 93 ()
State
PUBLISHED
Published
Updated
Assigner
kubernetes
NVD status
Modified

Description

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.

Weaknesses (CWE)

  • CWE-601 — URL Redirection to Untrusted Site

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.4CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:Hkubernetes
CVSS 3.1MEDIUM 6.4CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:HNVD · jordan@liggitt.net (Secondary)
CVSS 3.1MEDIUM 6.8CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0MEDIUM 6.0AV:N/AC:M/Au:S/C:P/I:P/A:PNVD · nvd@nist.gov (Primary)

Advisories

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Kubernetes · Kubernetesaffected 1.6 ; affected 1.7 ; affected 1.8 ; affected 1.9 ; affected 1.10 ; affected 1.11

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD