CVE-2019-11247Improper Input Validation in Apiextensions-apiserver

Severity
8.1HIGHNVD
EPSS
0.4%
top 40.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedAug 29
Latest updateMay 24

Description

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 pri

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NExploitability: 2.8 | Impact: 5.2

Affected Packages4 packages

NVDkubernetes/kubernetes1.13.01.13.9+4
Debiankubernetes/kubernetes< 1.17.4-1+3
CVEListV5kubernetes/kubernetes9 versions+8
Gok8s.io/apiextensions-apiserver0.7.00.13.9+2

Also affects: Openshift Container Platform 3.10, 3.11, 3.9

🔴Vulnerability Details

4
GHSA
Kubernetes kube-apiserver unauthorized access2022-05-24
OSV
Kubernetes kube-apiserver unauthorized access2022-05-24
OSV
CVE-2019-11247: The Kubernetes kube-apiserver mistakenly allows access to a cluster-scoped custom resource if the request is made as if the resource were namespaced2019-08-29
CVEList
Kubernetes kube-apiserver allows access to custom resources via wrong scope2019-08-29

📋Vendor Advisories

2
Red Hat
kubernetes: API server allows access to cluster-scoped custom resources as if resources were namespaced2019-08-05
Debian
CVE-2019-11247: kubernetes - The Kubernetes kube-apiserver mistakenly allows access to a cluster-scoped custo...2019

💬Community

2
Bugzilla
CVE-2019-11247 kubernetes: API server allows access to cluster-scoped custom resources as if resources were namespaced [fedora-all]2019-08-05
Bugzilla
CVE-2019-11247 kubernetes: API server allows access to cluster-scoped custom resources as if resources were namespaced2019-07-23
CVE-2019-11247 — Improper Input Validation | cvebase