Local privilege elevation in Composer-Setup for Windows

In Composer-Setup for Windows before version 6.0.0, if the developer's computer is shared with other users, a local attacker may be able to exploit the following scenarios. 1. A local regular user may modify the existing `C:\ProgramData\ComposerSetup\bin\composer.bat` in order to get elevated command execution when composer is run by an administrator. 2. A local regular user may create a specially crafted dll in the `C:\ProgramData\ComposerSetup\bin` folder in order to get Local System privileges. See: https://itm4n.github.io/windows-server-netman-dll-hijacking. 3. If the directory of the php.exe selected by the user is not in the system path, it is added without checking that it is admin secured, as per Microsoft guidelines. See: https://msrc-blog.microsoft.com/2018/04/04/triaging-a-dll-planting-vulnerability.

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

缺省权限不正确

Composer-Setup 安全漏洞

Composer-Setup是Composer开源的一款应用程序。 基于Windows平台的Composer-Setup 6.0.0之前版本中存在安全漏洞。攻击者可利用该漏洞提升权限（如：执行权限较高的命令，获取本地系统权限等）。

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