漏洞信息
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Vulnerability Title
Kyverno: ServiceAccount token leaked to external servers via apiCall service URL
Vulnerability Description
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4, Kyverno's apiCall feature in ClusterPolicy automatically attaches the admission controller's ServiceAccount token to outgoing HTTP requests. The service URL has no validation — it can point anywhere, including attacker-controlled servers. Since the admission controller SA has permissions to patch webhook configurations, a stolen token leads to full cluster compromise. Versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4 patch the issue.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Vulnerability Type
信息暴露
Vulnerability Title
Kyverno 信息泄露漏洞
Vulnerability Description
Kyverno是Kyverno开源的一个为 Kubernetes 设计的策略引擎。 Kyverno存在信息泄露漏洞,该漏洞源于apiCall功能自动附加ServiceAccount令牌,可能导致集群完全受损。以下版本受到影响:1.18.0-rc1之前版本、1.17.2-rc1之前版本和1.16.4之前版本。
CVSS Information
N/A
Vulnerability Type
N/A