2021年6月8日，微软在6月份补丁日更新中通报并修复了Windows Print Spooler远程代码执行漏洞（CVE-2021-1675）。日前，该漏洞的POC已在网络上公开。

Windows Print Spooler是Windows的打印机后台处理程序，广泛的应用于各种内网中，攻击者可以在漏洞环境中绕过RpcAddPrinterDriver的身份验证，并在打印服务器中安装恶意驱动程序。若攻击者所控制的用户在域中，则攻击者可以连接到DC中的Spooler服务，并利用该漏洞在DC中安装恶意驱动程序，从而可能控制整个域环境。

该漏洞广泛存在于各个Windows版本中，利用复杂度为中，但由于成功利用该漏洞的攻击者可以完整的控制域环境，攻击可能造成的后果严重，所以该漏洞的利用价值极高。

2021年6月29日，国外安全研究人员在GitHub上公开了Windows Print Spooler远程代码执行漏洞的POC。毒霸安全专家建议相关用户尽快升级系统以修复该漏洞，避免受到黑客攻击。

- Windows Server 2008 R2 for x64-based Systems Service Pack 1

- Windows Server 2008 for x64-based Systems Service Pack 2 (Server Coreinstallation)

- Windows Server 2008 for x64-based Systems Service Pack 2

- Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Coreinstallation)

- Windows Server 2008 for 32-bit Systems Service Pack 2

- Windows RT 8.1

- Windows Server 2012 R2 (Server Core installation)

- Windows Server 2012 R2

- Windows Server 2012 (Server Core installation)

- Windows Server 2012

- Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Coreinstallation)

- Windows 10 Version 1909 for ARM64-based Systems

- Windows 10 Version 20H2 for ARM64-based Systems

- Windows 10 Version 20H2 for 32-bit Systems

- Windows 10 Version 21H1 for 32-bit Systems

- Windows 10 Version 20H2 for x64-based Systems

- Windows Server, version 2004 (Server Core installation)

- Windows 10 Version 21H1 for ARM64-based Systems

- Windows 10 Version 21H1 for x64-based Systems

- Windows 8.1 for x64-based systems

- Windows 8.1 for 32-bit systems

- Windows 7 for x64-based Systems Service Pack 1

- Windows 7 for 32-bit Systems Service Pack 1

- Windows 10 Version 2004 for x64-based Systems

- Windows 10 Version 2004 for ARM64-based Systems

- Windows 10 Version 2004 for 32-bit Systems

- Windows Server 2016  (Server Coreinstallation)

- Windows Server 2016

- Windows 10 Version 1607 for x64-based Systems

- Windows 10 Version 1607 for 32-bit Systems

- Windows 10 for x64-based Systems

- Windows 10 for 32-bit Systems

- Windows Server, version 20H2 (Server Core Installation)

- Windows 10 Version 1909 for x64-based Systems

- Windows 10 Version 1909 for 32-bit Systems

- Windows Server 2019  (Server Coreinstallation)

- Windows Server 2019

- Windows 10 Version 1809 for ARM64-based Systems

- Windows 10 Version 1809 for x64-based Systems

- Windows 10 Version 1809 for 32-bit Systems

目前微软已修复该漏洞并发布了安全版本，毒霸安全团队强烈建议用户立即更新Windows至最新版本。

若用户暂时无法进行补丁更新，可以通过禁用Print Spooler服务来缓解漏洞风险。

临时解决方案：

运行service.msc，在服务列表中找到PrintSpooler服务。

右键打开服务属性，将服务类型修改为“禁用”，并停止该服务。