#VU30804 Permissions, Privileges, and Access Controls in Kubernetes - CVE-2019-11247
Published: August 29, 2019 / Updated: July 17, 2020
Kubernetes
Kubernetes
Description
The vulnerability allows a remote authenticated user to read and manipulate data.
The Kubernetes kube-apiserver mistakenly allows access to a cluster-scoped custom resource if the request is made as if the resource were namespaced. Authorizations for the resource accessed in this manner are enforced using roles and role bindings within the namespace, meaning that a user with access only to a resource in one namespace could create, view update or delete the cluster-scoped resource (according to their namespace role privileges). Kubernetes affected versions include versions prior to 1.13.9, versions prior to 1.14.5, versions prior to 1.15.2, and versions 1.7, 1.8, 1.9, 1.10, 1.11, 1.12.
Remediation
External links
- https://access.redhat.com/errata/RHBA-2019:2816
- https://access.redhat.com/errata/RHBA-2019:2824
- https://access.redhat.com/errata/RHSA-2019:2690
- https://access.redhat.com/errata/RHSA-2019:2769
- https://github.com/kubernetes/kubernetes/issues/80983
- https://groups.google.com/d/msg/kubernetes-security-announce/vUtEcSEY6SM/v2ZZxsmtFQAJ
- https://security.netapp.com/advisory/ntap-20190919-0003/