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CVE-2023-3955— Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation

Quick assessment

Affected
Kubernetes kubelet
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.

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存在安全漏洞，该漏洞源于在 Windows 节点上创建 Pod 的用户可以升级到管理员权限。

CVSS 8.8 · High EPSS 3.10% · P87

Possible ATT&CK Techniques 1 AI

T1098 · Account Manipulation
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I. Basic Information for CVE-2023-3955

Vulnerability Information
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Vulnerability Title
Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation
Source: CVE Program / CVE List V5
Vulnerability Description
A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Kubernetes 输入验证错误漏洞
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存在安全漏洞，该漏洞源于在 Windows 节点上创建 Pod 的用户可以升级到管理员权限。
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 kubelet v1.28.0 -

II. Public POCs for CVE-2023-3955

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III. Intelligence Information for CVE-2023-3955

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Vendor Advisories for CVE-2023-3955 (1)

Other References for CVE-2023-3955 (2)

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-3955

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