微软8月份补丁日重点漏洞预警
一、基本情况
8月11日，微软发布8月安全更新公告，修复了Microsoft Office、Windows NTLM、Windows TCP/IP、.NET Core & Visual Studio、ASP .NET等多个关键组件存在44个安全漏洞，其中，7个被微软标记为“严重”级别漏洞，37个标记为“重要”级别漏洞。目前厂商已发布漏洞修复补丁，建议广大用户及时下载并安装修复补丁进行防护，做好资产自查以及预防工作，以免遭受黑客攻击。
二、漏洞等级
高危
三、漏洞描述
根据产品流行度和漏洞重要性筛选出此次更新中包含影响较大的漏洞，请相关用户重点进行关注：
1.NFS ONCRPC XDR驱动的Windows服务远程代码执行漏洞（CVE-2021-26432）
未经身份验证的攻击者可远程利用该漏洞在目标主机上执行任意代码，可导致目标主机被攻击者控制。
2.远程桌面客户端远程代码执行漏洞（CVE-2021-34535）
该漏洞仅影响RDP客户端，当攻击者控制RDP服务器时可利用该漏洞通过远程桌面客户端在客户计算机上触发远程代码执行，造成客户端机器被入侵。
3.Windows Print Spooler远程代码执行漏洞（CVE-2021-36936）
具备低权限的攻击者利用该漏洞可在目标主机远程执行任意代码，可导致目标主机被攻击者控制。
4.Windows LSA欺骗漏洞（CVE-2021-36942）
该漏洞允许攻击者调用LSARPC接口的方法，使域控用NTLM对另一个服务器进行身份验证，该利用过程无需用户交互。
5.Windows Update Medic服务权限提升漏洞（CVE-2021-36948）
攻击者需要登录受影响的系统并运行特制的程序来提升权限。
6.Windows TCP/IP远程代码执行漏洞（CVE-2021-26424）
攻击者可通过发送ipv6 ping触发该漏洞，可在目标系统执行任意代码。
四、影响范围
1.CVE-2021-26432:
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
Windows Server 2012 R2 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 (Server Core installation)
Windows Server 2012
Windows RT 8.1
Windows 8.1 for x64-based systems
Windows 8.1 for 32-bit systems
Windows Server 2016 (Server Core installation)
Windows Server 2016
2.CVE-2021-34535:
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
Remote Desktop client for Windows Desktop
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
Windows 10 for x64-based Systems
Windows 10 for 32-bit Systems
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows Server 2012
Windows Server 2008 R2 for x64-based Systems Service Pack 1
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
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows Server 2012 R2
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
3.CVE-2021-36936:
Windows Server 2012 R2 (Server Core installation)
Windows Server 2012 R2
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
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
4.CVE-2021-36942:
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 2016 (Server Core installation)
Windows Server 2016
Windows Server, version 20H2 (Server Core Installation)
Windows Server, version 2004 (Server Core installation)
Windows Server 2019 (Server Core installation)
Windows Server 2019
5.CVE-2021-36948:
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
6.CVE-2021-26424:
Windows 7 for x64-based Systems Service Pack 1
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 2012 R2 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 (Server Core installation)
Windows Server 2012
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
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 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
五、安全建议
目前微软官方已发布漏洞修复补丁，建议受影响用户及时更新补丁并安装。
下载链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26432
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34535
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36936
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26424
六、参考链接
https://msrc.microsoft.com/update-guide/releaseNote/2021-Aug
（来源：工业和信息化部网络安全威胁和漏洞信息共享平台 https://www.cstis.cn/post/4b3d4bc1-2ac5-4198-4365-9334c190c4ba）