0#漏洞简述
6月9日，微软发布6月安全更新补丁，修复了50个安全漏洞，其中包括一个Windows Print Spooler权限提升漏洞，漏洞CVE编号：CVE-2021-1675。未经身份验证的远程攻击者可利用该漏洞以SYSTEM权限在域控制器上执行任意代码，从而获得整个域的控制权。建议受影响用户及时更新漏洞补丁进行防护，做好资产自查以及预防工作，以免遭受黑客攻击。
近日，国内安全研究人员发现GitHub上有安全人员公布了Windows Print Spooler远程代码执行漏洞（CVE-2021-1675）的POC。
1#漏洞详细信息
Windows Print Spooler是打印后台处理服务，即管理所有本地和网络打印队列及控制所有打印工作，该漏洞在域环境中合适的条件下，无需任何用户交互，未经身份验证的远程攻击者就可以利用该漏洞以SYSTEM权限在域控制器上执行任意代码，从而获得整个域的控制权。
POC已扩散，EXP已公开！！！官方已有可更新版本，鉴于漏洞危害较大，建议用户及时安装更新补丁。
1.官方建议：
目前官方已发布漏洞修复补丁，建议受影响用户尽快更新漏洞补丁。
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-1675
2. 临时防护措施：
若相关用户暂时无法进行补丁更新，可通过禁用Print Spooler服务来进行缓解：
1）在服务应用（services.msc）中找到Print Spooler服务。
2）停止运行服务，同时将“启动类型”修改为“禁用”。
2#影响范围
- 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 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 Server 2016 (Server Core installation)
- 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 20H2 for ARM64-based Systems
- Windows 10 Version 20H2 for 32-bit Systems
- Windows 10 Version 20H2 for x64-based Systems
- Windows Server, version 2004 (Server Core installation)
- 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 Server 2019 (Server Core installation)
- 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
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