## CVE-2021-1675 Windows Print Spooler远程代码执行漏洞

### 简介  

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。

2021年6月，Windows官方发布安全更新，其中修复了 CVE-2021-1675 Windows Print Spooler远程代码执行漏洞。

2021年6月29日，安全研究人员在GitHub上公开了Windows Print Spooler远程代码执行漏洞POC。攻击者可以通过该漏洞绕过PfcAddPrinterDriver的安全验证，并在打印服务器中安装恶意的驱动程序，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中安装恶意的驱动程序，完整的控制整个域环境。



### 影响版本 

> Windows Server 2019 (Server Core installation)
>
>   Windows Server 2019
>
>   Windows Server 2016 (Server Core installation)
>
>   Windows Server 2016
>
>   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 Core installation)
>
>   Windows Server 2008 R2 for x64-based Systems Service Pack 1
>
>   Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
>
>   Windows Server 2008 for x64-based Systems Service Pack 2
>
>   Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
>
>   Windows Server 2008 for 32-bit Systems Service Pack 2
>
>   Windows Server, version 2004 (Server Core installation)
>
>   Windows RT 8.1
>
>   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 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 20H2 for ARM64-based Systems
>
>   Windows 10 Version 20H2 for 32-bit Systems
>
>   Windows 10 Version 20H2 for x64-based Systems
>
>   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 10 Version 21H1 for 32-bit Systems
>
>   Windows 10 Version 21H1 for ARM64-based Systems
>
>   Windows 10 Version 21H1 for x64-based Systems
>
>   Windows 10 Version 1909 for ARM64-based Systems
>
>   Windows 10 Version 1909 for x64-based Systems
>
>   Windows 10 Version 1909 for 32-bit Systems
>
>   Windows 10 Version 1809 for ARM64-based Systems
>
>   Windows 10 Version 1809 for x64-based Systems
>
>   Windows 10 Version 1809 for 32-bit Systems

### 处置建议  

1、及时更新Windows安全补丁，可登录阿里云云安全中心使用漏洞修复模块进行一键检测与修复。

2、在服务应用（services.msc）中禁用 Print Spooler服务。

### 相关链接  

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1675 

### POC 链接  

https://github.com/afwu/PrintNightmare 

https://github.com/cube0x0/CVE-2021-1675