Helm Chart Dependency Updating With Malicious Chart.yaml Content And Symlink Can Lead To Code Execution

Helm is a package manager for Charts for Kubernetes. Prior to 3.18.4, a specially crafted Chart.yaml file along with a specially linked Chart.lock file can lead to local code execution when dependencies are updated. Fields in a Chart.yaml file, that are carried over to a Chart.lock file when dependencies are updated and this file is written, can be crafted in a way that can cause execution if that same content were in a file that is executed (e.g., a bash.rc file or shell script). If the Chart.lock file is symlinked to one of these files updating dependencies will write the lock file content to the symlinked file. This can lead to unwanted execution. Helm warns of the symlinked file but did not stop execution due to symlinking. This issue has been resolved in Helm v3.18.4.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:H

对生成代码的控制不恰当(代码注入)

Helm 代码注入漏洞

Helm是CNCF基金会的一款Kubernetes包管理器。 Helm 3.18.4之前版本存在代码注入漏洞，该漏洞源于特制的Chart.yaml和Chart.lock文件可能导致本地代码执行。

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