CVE-2020-8559

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.
Open Redirect
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.4 MEDIUM
NETWORK
HIGH
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
kubernetesCNA
6.4 MEDIUM
NETWORK
HIGH
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 98%
VendorProductVersion
kuberneteskubernetes
1.6.0 ≤
𝑥
≤ 1.15.0
kuberneteskubernetes
1.16.0 ≤
𝑥
< 1.16.13
kuberneteskubernetes
1.17.0 ≤
𝑥
< 1.17.9
kuberneteskubernetes
1.18.0 ≤
𝑥
< 1.18.6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
kubernetes
bullseye
1.20.5+really1.20.2-1
fixed
sid
1.20.5+really1.20.2-1.1
fixed
trixie
1.20.5+really1.20.2-1.1
fixed
bookworm
1.20.5+really1.20.2-1.1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
kubernetes
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
bionic
dne
xenial
dne
trusty
dne
Common Weakness Enumeration
References
https://github.com/kubernetes/kubernetes/issues/92914
https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5wkBwAJ
https://security.netapp.com/advisory/ntap-20200810-0004/
https://github.com/kubernetes/kubernetes/issues/92914
https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5wkBwAJ
https://security.netapp.com/advisory/ntap-20200810-0004/