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CVE-2021-25746

Description

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use .metadata.annotations in an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.

POC

Reference

No PoCs from references.

Github

- https://github.com/cloud-Xolt/CVE

- https://github.com/kajogo777/kubernetes-misconfigured