漏洞信息
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Vulnerability Title
cal.com Repository Takeover via pull_request_target Workflow
Vulnerability Description
cal.com (calcom repository, later renamed cal.diy) is affected by a repository takeover vulnerability in its GitHub Actions workflows. The workflow pr.yml uses the pull_request_target trigger with the repository's default write permissions and passes them down to check-types.yml. check-types.yml then performs a 'dangerous' checkout of the attacker-submitted pull request code (via the dangerous-git-checkout action) and subsequently executes it (through yarn install and package.json scripts). An attacker can open a pull request whose code runs arbitrary commands with the repository's write-scoped GITHUB_TOKEN, allowing them to push commits, merge or mutate pull requests, add or delete comments, and delete or force-push branches, thereby compromising the repository. The main branch is affected; no patched version is available.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Vulnerability Title
calcom cal.diy 命令注入漏洞
Vulnerability Description
calcom cal.diy是calcom的Web中间件。 calcom cal.diy存在命令注入漏洞,该漏洞源于GitHub Actions工作流中pull_request_target触发器的使用,导致攻击者可以通过打开拉取请求运行任意命令,利用仓库的写入权限,进行提交、合并或修改拉取请求、添加或删除评论以及删除或强制推送分支,从而接管仓库。
CVSS Information
N/A
Vulnerability Type
N/A