CVE-2020-8559
Last modified
CVE-2020-8559 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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.. EPSS estimates a 6.10% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Kubernetes | >= 1.6.0, <= 1.15.0 |
| Kubernetes | Kubernetes | >= 1.16.0, < 1.16.13 |
| Kubernetes | Kubernetes | >= 1.17.0, < 1.17.9 |
| Kubernetes | Kubernetes | >= 1.18.0, < 1.18.6 |
References
- https://github.com/kubernetes/kubernetes/issues/92914Exploit, Issue Tracking, Patch, Third Party Advisory
- https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5wkBwAJExploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200810-0004/Third Party Advisory
- https://github.com/kubernetes/kubernetes/issues/92914Exploit, Issue Tracking, Patch, Third Party Advisory
- https://groups.google.com/d/msg/kubernetes-security-announce/JAIGG5yNROs/19nHQ5wkBwAJExploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200810-0004/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-8559?
How severe is CVE-2020-8559?
How do I fix CVE-2020-8559?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-8552The Kubernetes API server component in versions prior to 1.1…4.3
- CVE-2020-8553The Kubernetes ingress-nginx component prior to version 0.28…5.9
- CVE-2020-8554Kubernetes API server in all versions allow an attacker who …5
- CVE-2020-8555The Kubernetes kube-controller-manager in versions v1.0-1.14…6.3
- CVE-2020-8557The Kubernetes kubelet component in versions 1.1-1.16.12, 1.…5.5
- CVE-2020-8558The Kubelet and kube-proxy components in versions 1.1.0-1.16…8.8
- CVE-2020-8561A security issue was discovered in Kubernetes where actors t…4.1
- CVE-2020-8562As mitigations to a report from 2019 and CVE-2020-8555, Kube…3.1
- CVE-2020-8563In Kubernetes clusters using VSphere as a cloud provider, wi…5.5
- CVE-2020-8564In Kubernetes clusters using a logging level of at least 4, …5.5
- CVE-2020-8565In Kubernetes, if the logging level is set to at least 9, au…5.5
- CVE-2020-8566In Kubernetes clusters using Ceph RBD as a storage provision…5.5
Are you affected by CVE-2020-8559?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST