A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.
The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.
The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.
| Link | Tags |
|---|---|
| https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE | mailing list third party advisory mitigation |
| https://github.com/kubernetes/kubernetes/issues/103675 | third party advisory mitigation |
| https://security.netapp.com/advisory/ntap-20211014-0001/ | third party advisory |