Vulnerabilities > CVE-2021-25736 - Unspecified vulnerability in Kubernetes
Attack vector
NETWORK Attack complexity
HIGH Privileges required
LOW Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected.
Vulnerable Configurations
References
- https://github.com/kubernetes/kubernetes/pull/99958
- https://github.com/kubernetes/kubernetes/pull/99958
- https://groups.google.com/g/kubernetes-security-announce/c/lIoOPObO51Q/m/O15LOazPAgAJ
- https://groups.google.com/g/kubernetes-security-announce/c/lIoOPObO51Q/m/O15LOazPAgAJ
- https://security.netapp.com/advisory/ntap-20231221-0003/
- https://security.netapp.com/advisory/ntap-20231221-0003/