CVE-2019-11248— Kubernetes kubelet exposes /debug/pprof info on healthz port
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I. Basic Information for CVE-2019-11248
Vulnerability Information
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Vulnerability Title
Kubernetes kubelet exposes /debug/pprof info on healthz port
Source: NVD (National Vulnerability Database)
Vulnerability Description
The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. The go pprof endpoint is exposed over the Kubelet's healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未保护的主要通道
Source: NVD (National Vulnerability Database)
Vulnerability Title
Google Kubernetes 信息泄露漏洞
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中存在信息泄露漏洞。该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。以下产品及版本受到影响：Google Kubernetes 1.15.0之前版本，1.14.4之前版本，1.13.8之前版本，1.12.10之前版本。
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)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Kubernetes | Kubernetes | prior to 1.12.10 | - |
II. Public POCs for CVE-2019-11248
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | POC for CVE-2019-11248, remote code execution (RCE) | https://github.com/nop2nop/cve-2019-11248 | POC Details |
| 2 | POC for CVE-2019-11248, remote code execution (RCE) | https://github.com/masm3264/poc-CVE-2019-11248 | POC Details |
| 3 | None | https://github.com/nod3jzzz/poc-CVE-2019-11248 | POC Details |
| 4 | None | https://github.com/g1thubb001/poc-CVE-2019-11248 | POC Details |
| 5 | cve-2019-11248 cve-2020-1938 | https://github.com/bash3rt3am/poc-cve | POC Details |
| 6 | The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-11248.yaml | POC Details |
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- https://security.netapp.com/advisory/ntap-20190919-0003/x_refsource_CONFIRM
- https://github.com/kubernetes/kubernetes/issues/81023x_refsource_CONFIRM
- https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJmailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2019-11248
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-2019-11247 | Kubernetes kube-apiserver allows access to custom resources via wrong scope | |
| CVE-2019-11249 | kubectl cp allows symlink directory traversal | |
| CVE-2019-11250 | Kubernetes client-go logs authorization headers at debug verbosity levels |
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