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CVE-2019-11247— Kubernetes kube-apiserver allows access to custom resources via wrong scope

Quick assessment

Affected
Kubernetes Kubernetes
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

kubectl是一款用于运行针对Kubernetes集群的命令的命令行程序。 kubectl中存在权限许可和访问控制问题漏洞。该漏洞源于网络系统或产品缺乏有效的权限许可和访问控制措施。以下产品及版本受到影响：Kubernetes 1.13.9之前版本，1.14.5之前版本，1.15.2之前版本，1.7版本，1.8版本，1.9版本，1.10版本，1.11版本，1.12版本。

AI Predicted 9.8 Difficulty: Easy EPSS 2.09% · P81

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2019-11247

Vulnerability Information
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Vulnerability Title
Kubernetes kube-apiserver allows access to custom resources via wrong scope
Source: CVE Program / CVE List V5
Vulnerability 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 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
kubectl 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kubectl是一款用于运行针对Kubernetes集群的命令的命令行程序。 kubectl中存在权限许可和访问控制问题漏洞。该漏洞源于网络系统或产品缺乏有效的权限许可和访问控制措施。以下产品及版本受到影响：Kubernetes 1.13.9之前版本，1.14.5之前版本，1.15.2之前版本，1.7版本，1.8版本，1.9版本，1.10版本，1.11版本，1.12版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kubernetes Kubernetes prior to 1.13.9 -

II. Public POCs for CVE-2019-11247

# POC Description Source Link Shenlong Link
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default-local-qwen3.6 · 16829 chars
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III. Intelligence Information for CVE-2019-11247

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Vendor Advisories for CVE-2019-11247 (5)

Other References for CVE-2019-11247 (2)

Same Patch Batch · Kubernetes · 2019-08-29 · 6 CVEs total

CVE-2019-11245 kubelet-started container uid changes to root after first restart or if image is already p
CVE-2019-11246 kubectl cp allows symlink directory traversal
CVE-2019-11248 Kubernetes kubelet exposes /debug/pprof info on healthz port
CVE-2019-11249 kubectl cp allows symlink directory traversal
CVE-2019-11250 Kubernetes client-go logs authorization headers at debug verbosity levels

IV. Related Vulnerabilities

Same product: Kubernetes
Same vendor: Kubernetes
Same weakness: CWE-20

V. Comments for CVE-2019-11247

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