“燕云实验室”是河北千诚电子科技有限公司成立的网络安全攻防技术研究实验室。专注于web安全，网络攻防，安全运维，应急溯源方面的研究，开发成果应用于产品核心技术转化，国家重点科技项目攻关。
一、漏洞概述：
微软官方公布了一个本地提权漏洞CVE-2020-0787，根据微软的漏洞描述声称，攻击者在使用低权限用户登录系统后，可以利用该漏洞构造恶意程序直接提权到administrator或者system权限。system是windows所有操作系统中权限最大的账户。
微软官方声明：
二、影响范围
基本上Windows全版本了
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1709 for 32-bit Systems
Windows 10 Version 1709 for ARM64-based Systems
Windows 10 Version 1709 for x64-based Systems
Windows 10 Version 1803 for 32-bit Systems
Windows 10 Version 1803 for ARM64-based Systems
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1903 for 32-bit Systems
Windows 10 Version 1903 for ARM64-based Systems
Windows 10 Version 1903 for x64-based Systems
Windows 10 Version 1909 for 32-bit Systems
Windows 10 Version 1909 for ARM64-based Systems
Windows 10 Version 1909 for x64-based Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows RT 8.1
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for Itanium-Based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server, version 1803 (Server Core Installation)
Windows Server, version 1903 (Server Core installation)
Windows Server, version 1909 (Server Core installation
三、漏洞利用
全世界最猛的同性社交网站 Github 中已经有dalao做出了漏洞利用的 Exp
连接如下：
https://github.com/cbwang505/CVE-2020-0787-EXP-ALL-WINDOWS-VERSION
下载如下exe文件：
我的Windows测试机：
左侧cmd为普通用的whoami执行结果，右测cmd为执行exe后的自动弹框
最终提权成功，输入whoami看到已经成功获取system权限。
四、修复建议：
跟着微软升级好了~
声明
署名:CC BY-NC-SA 3.0 CN
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