CVE-2020-8559

moderate-risk
Published 2020-07-22

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.

Do I need to act?

!
51.2% chance of exploitation in next 30 days
EPSS score — higher than 49% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.4/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Kubernetes

References (6)

Exploit https://github.com/kubernetes/kubernetes/issues/92914
Exploit https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5w...
Third Party Advisory https://security.netapp.com/advisory/ntap-20200810-0004/
Exploit https://github.com/kubernetes/kubernetes/issues/92914
Exploit https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5w...
Third Party Advisory https://security.netapp.com/advisory/ntap-20200810-0004/
43
/ 100
moderate-risk
Severity 20/34 · Moderate
Exploitability 18/34 · Moderate
Exposure 5/34 · Minimal