CVE-2019-11247: Kubernetes API Server Vulnerability
Severity
Medium
Vendor
Pivotal
Description
Pivotal Container Service (1.4.x versions prior to 1.4.3) through its dependency on a vulnerable version of Kubernetes kube-apiserver (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), 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).
Affected VMware Products and Versions
Severity is medium unless otherwise noted.
-
Pivotal Container Service (PKS)
- 1.4 versions prior to 1.4.3
Mitigation
Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:
-
Pivotal Container Service (PKS)
- 1.4.3
References
- https://www.cloudfoundry.org/blog/cve-2019-11247
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-11247
History
2019-10-15: Initial vulnerability report published.