CVE-2020-8554
Kubernetes man in the middle using LoadBalancer or ExternalIPs
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jan 21, 2021
- Updated
- Jun 1, 2026
- Reserved
- Feb 3, 2020
Description
Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | kubernetes |
Weaknesses
- CWE-283 Unverified Ownership
Affected Products
| Product | Versions |
|---|---|
KubernetesKubernetes |
|
References
- https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/
- https://groups.google.com/g/kubernetes-security-announce/c/iZWsF9nbKE8
- https://github.com/kubernetes/kubernetes/issues/97076
- [druid-commits] 20210201 [GitHub] [druid] jon-wei opened a new pull request #10826: Address CVE-2020-8570, suppress CVE-2020-8554mailing-list
- [druid-commits] 20210202 [GitHub] [druid] jon-wei opened a new pull request #10826: Address CVE-2020-8570, suppress CVE-2020-8554mailing-list
- [druid-commits] 20210203 [GitHub] [druid] jihoonson commented on pull request #10826: Address CVE-2020-8570, suppress CVE-2020-8554mailing-list
- [druid-commits] 20210203 [GitHub] [druid] jihoonson merged pull request #10826: Address CVE-2020-8570, suppress CVE-2020-8554mailing-list
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
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