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CVE-2023-2728— Bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin

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.

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。攻击者利用该漏洞强制执行安装秘密策略的容器。

CVSS 6.5 · Medium EPSS 2.16% · P81
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I. Basic Information for CVE-2023-2728

Vulnerability Information
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Vulnerability Title
Bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin
Source: CVE Program / CVE List V5
Vulnerability Description
Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
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存在安全漏洞。攻击者利用该漏洞强制执行安装秘密策略的容器。
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 v1.24.14 ~ <= -

II. Public POCs for CVE-2023-2728

# POC Description Source Link Shenlong Link
1 Module written in Ruby with the objective of exploiting vulnerabilities CVE-2023-2728 and CVE-2024-3177, both related to the secret mount policy in a Kubernetes cluster using a custom Metasploit module. Part of a Cybersecurity Master's degree finalization project. https://github.com/Cgv-Dev/Metasploit-Module-TFM POC Details
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III. Intelligence Information for CVE-2023-2728

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Vendor Advisories for CVE-2023-2728 (1)

Mailing List Discussions for CVE-2023-2728 (1)

Other References for CVE-2023-2728 (2)

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-2728

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