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CVE-2024-48921— Kyverno's PolicyException objects can be created in any namespace by default

Quick assessment

Affected
kyverno kyverno
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.

Kyverno是Kyverno开源的一个为 Kubernetes 设计的策略引擎。 Kyverno 1.13.0版本之前存在授权问题漏洞，该漏洞源于kyverno ClusterPolicy，可以通过在随机命名空间中创建 PolicyException 来覆盖。

AI Predicted 8.1 Difficulty: Easy EPSS 0.57% · P45

Possible ATT&CK Techniques 1 AI

T1648 · Serverless Execution
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I. Basic Information for CVE-2024-48921

Vulnerability Information
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Vulnerability Title
Kyverno's PolicyException objects can be created in any namespace by default
Source: CVE Program / CVE List V5
Vulnerability Description
Kyverno is a policy engine designed for Kubernetes. A kyverno ClusterPolicy, ie. "disallow-privileged-containers," can be overridden by the creation of a PolicyException in a random namespace. By design, PolicyExceptions are consumed from any namespace. Administrators may not recognize that this allows users with privileges to non-kyverno namespaces to create exceptions. This vulnerability is fixed in 1.13.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Kyverno 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kyverno是Kyverno开源的一个为 Kubernetes 设计的策略引擎。 Kyverno 1.13.0版本之前存在授权问题漏洞，该漏洞源于kyverno ClusterPolicy，可以通过在随机命名空间中创建 PolicyException 来覆盖。
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
kyverno kyverno < 1.13.0 -

II. Public POCs for CVE-2024-48921

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III. Intelligence Information for CVE-2024-48921

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Vendor Advisories for CVE-2024-48921 (1)

IV. Related Vulnerabilities

Same product: kyverno
Same vendor: kyverno
Same weakness: CWE-285

V. Comments for CVE-2024-48921

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