CVE-2023-31128— NextCloud Cookbook 操作系统命令注入漏洞

NextCloud Cookbook's pull-checks.yml workflow is vulnerable to OS Command Injection

NextCloud Cookbook is a recipe library app. Prior to commit a46d9855 on the `master` branch and commit 489bb744 on the `main-0.9.x` branch, the `pull-checks.yml` workflow is vulnerable to command injection attacks because of using an untrusted `github.head_ref` field. The `github.head_ref` value is an attacker-controlled value. Assigning the value to `zzz";echo${IFS}"hello";#` can lead to command injection. Since the permission is not restricted, the attacker has a write-access to the repository. This issue is fixed in commit a46d9855 on the `master` branch and commit 489bb744 on the `main-0.9.x` branch. There is no risk for the user of the app within the NextCloud server. This only affects the main repository and possible forks of it. Those who have forked the NextCloud Cookbook repository should make sure their forks are on the latest version to prevent code injection attacks and similar.

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

OS命令中使用的特殊元素转义处理不恰当(OS命令注入)

NextCloud Cookbook 操作系统命令注入漏洞

NextCloud Cookbook是NextCloud公司的一个菜谱。 NextCloud Cookbook 存在安全漏洞，该漏洞源于使用了不受信任的 `github.head_ref` 字段。

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