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CVE-2019-11245— kubelet-started container uid changes to root after first restart or if image is already pulled to the node

Quick assessment

Affected
Kubernetes Kubernetes
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。 Google Kubernetes v1.13.6版本和v1.14.2版本中存在安全漏洞。攻击者可利用该漏洞提升权限。

AI Predicted 5.3 Difficulty: Hard EPSS 0.60% · P46
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I. Basic Information for CVE-2019-11245

Vulnerability Information
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Vulnerability Title
kubelet-started container uid changes to root after first restart or if image is already pulled to the node
Source: CVE Program / CVE List V5
Vulnerability Description
In kubelet v1.13.6 and v1.14.2, containers for pods that do not specify an explicit runAsUser attempt to run as uid 0 (root) on container restart, or if the image was previously pulled to the node. If the pod specified mustRunAsNonRoot: true, the kubelet will refuse to start the container as root. If the pod did not specify mustRunAsNonRoot: true, the kubelet will run the container as uid 0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件检查或处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Google Kubernetes 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。 Google Kubernetes v1.13.6版本和v1.14.2版本中存在安全漏洞。攻击者可利用该漏洞提升权限。
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 v1.13.6 -

II. Public POCs for CVE-2019-11245

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III. Intelligence Information for CVE-2019-11245

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Vendor Advisories for CVE-2019-11245 (1)

Other References for CVE-2019-11245 (1)

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

CVE-2019-11246 kubectl cp allows symlink directory traversal
CVE-2019-11247 Kubernetes kube-apiserver allows access to custom resources via wrong scope
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-703

V. Comments for CVE-2019-11245

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