CVE-2022-3294— Node address isn't always verified when proxying
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I. Basic Information for CVE-2022-3294
Vulnerability Information
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Vulnerability Title
Node address isn't always verified when proxying
Source: NVD (National Vulnerability Database)
Vulnerability Description
Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Kubernetes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kubernetes（K8s）是云原生计算基金会（Cloud Native Computing Foundation）的一个开源系统，用于自动部署、扩展和管理容器化应用程序。 Kubernetes kube-apiserver存在安全漏洞，该漏洞源于攻击者可以通过节点地址绕过对数据的访问限制，从而读取敏感信息。
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 | unspecified ~ v1.25.3 | - |
II. Public POCs for CVE-2022-3294
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Privilege Escalation using nodes/proxy (create action allowed) and nodes/status (update/patch actions allowed) | https://github.com/arbaaz29/CVE-2022-3294 | POC Details |
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IV. Related Vulnerabilities
Same product: Kubernetes
- CVE-2025-13281
Portworx Half-Blind SSRF in kube-controller-manager - CVE-2025-5187
Nodes can delete themselves by adding an OwnerReference - CVE-2025-4563
Nodes can bypass dynamic resource allocation authorization c - CVE-2024-5321
Incorrect permissions on Windows containers logs - CVE-2024-3177
Bypassing mountable secrets policy imposed by the ServiceAcc
Same vendor: Kubernetes
- CVE-2026-3864
CSI Driver for NFS path traversal via subDir may delete unin - CVE-2026-4342
ingress-nginx comment-based nginx configuration injection - CVE-2026-3288
ingress-nginx rewrite-target nginx configuration injection - CVE-2025-15566
ingress-nginx auth-proxy-set-headers nginx configuration inj - CVE-2026-24514
ingress-nginx Admission Controller denial of service
Same weakness: CWE-20
V. Comments for CVE-2022-3294
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