CVE-2023-42813— Kyverno 安全漏洞
一分钟漏洞结论
影响对象
kyverno kyverno
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Kyverno是Kyverno开源的一个为 Kubernetes 设计的策略引擎。 Kyverno v1.11.0之前版本存在安全漏洞。攻击者利用该漏洞导致系统拒绝服务。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service
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一、 漏洞 CVE-2023-42813 基础信息
漏洞信息
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Vulnerability Title
Denial of service from malicious manifest in kyverno
来源: CVE Program / CVE List V5
Vulnerability Description
Kyverno is a policy engine designed for Kubernetes. A security vulnerability was found in Kyverno where an attacker could cause denial of service of Kyverno. The vulnerable component in Kyvernos Notary verifier. An attacker would need control over the registry from which Kyverno would fetch attestations. With such a position, the attacker could return a malicious response to Kyverno, when Kyverno would send a request to the registry. The malicious response would cause denial of service of Kyverno, such that other users' admission requests would be blocked from being processed. This is a vulnerability in a new component released in v1.11.0. The only users affected by this are those that have been building Kyverno from source at the main branch which is not encouraged. Users consuming official Kyverno releases are not affected. There are no known cases of this vulnerability being exploited in the wild.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
来源: CVE Program / CVE List V5
Vulnerability Title
Kyverno 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Kyverno是Kyverno开源的一个为 Kubernetes 设计的策略引擎。 Kyverno v1.11.0之前版本存在安全漏洞。攻击者利用该漏洞导致系统拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2023-42813 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2023-42813 补丁与修复 (3)
-
https://github.com/kyverno/kyverno/pull/8428 x_refsource_MISC
CVE-2023-42813 厂商安全公告 (1)
-
https://github.com/kyverno/kyverno/security/advisories/GHSA-wc3x-5rfv-hh5v x_refsource_CONFIRM
同批安全公告 · kyverno · 2023-11-13 · 共 4 条
| CVE-2023-42816 | 6.1 MEDIUM | Kyverno 安全漏洞 |
| CVE-2023-42814 | 3.1 LOW | Kyverno 安全漏洞 |
| CVE-2023-42815 | 3.1 LOW | Kyverno 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2023-42813
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