【威胁通告】微软3月清静更新多个产品高危误差通告

2021-03-10

一. 误差概述

北京时间3月10日，微软宣布3月清静更新补丁，修复了89个清静问题，涉及Microsoft Windows、Microsoft Office、Microsoft Exchange Server、Internet Explorer、Visual Studio等普遍使用的产品，其中包括远程代码执行和权限提升等高危误差类型。

本月微软月度更新修复的误差中，严重水平为要害（Critical）的误差有14个，主要（Important）误差有75个。请相关用户实时更新补丁举行防护，详细误差列表请参考附录。

AG公司远程清静评估系统（RSAS）已具备微软此次补丁更新中大大都误差的检测能力（包括CVE-2021-26411、CVE-2021-24089、CVE-2021-26412、CVE-2021-26855、CVE-2021-26857、CVE-2021-26867、CVE-2021-26876、CVE-2021-26897、CVE-2021-26902、CVE-2021-27065、CVE-2021-21300等高危误差），请相关用户关注AG公司远程清静评估系统系统插件升级包的更新，实时升级至V6.0R02F01.2108，官网链接：http://update.nsfocus.com/update/listRsasDetail/v/vulsys

参考链接：

https://msrc.microsoft.com/update-guide/releaseNote/2021-Mar

二. 重点误差简述

凭证产品盛行度和误差主要性筛选出此次更新中包括影响较大的误差，请相关用户重点举行关注：

Internet Explorer 内存泄露误差（CVE-2021-26411）：

Internet Explorer在处置惩罚DOM工具时，保存一处double free误差，攻击者通过诱导用户点击恶意链接或文件举行触发，可导致远程代码执行，从而取得目的系统的控制权限。该误差曾被黑客组织用于针对专业清静研究者的APT攻击，现在误差细节已果真。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26411

Windows Hyper-V 远程代码执行误差（CVE-2021-26867）：

使用了Plan-9平台设置的 Hyper-V虚拟客户端保存一个严重误差，经由身份验证的攻击者可在Hyper-V服务器上执行恣意代码。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26867

Windows DNS Server 远程代码执行误差（CVE-2021-26897）：

Windows DNS Server保存一个严重的远程代码执行误差，攻击者通过向目的主机发送特制的请求，可在目的主机上以system权限执行恣意代码。启用清静区域更新可部分缓解此误差，但攻击者依然可以通过加入域的盘算机攻击启用了清静区域更新的DNS服务器。现在该误差细节已果真。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26897

Microsoft SharePoint Server 远程代码执行误差（CVE-2021-27076）：

Microsoft SharePoint Server保存远程代码执行误差。攻击者需要可以使用SharePoint服务器建设或修改网站，经由身份认证的攻击者可结构恶意数据执行反序列化攻击执行恣意下令，从而获取服务器最高权限。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-27076

Windows Win32k 权限提升误差（CVE-2021-27077）：

Windows内核模式驱动对内存工具处置惩罚不当导致的权限提升误差，经由身份验证的外地攻击者可使用此误差在目的系统上提升其权限以执行恣意代码。现在已有误差细节披露。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-27077

三. 影响规模

以下为重点关注误差的受影响产品版本，其他误差影响产品规模请参阅官方通告链接。

误差编号	受影响产品版本
CVE-2021-26411	Microsoft Edge (EdgeHTML-based)： 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 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 1903 for ARM64-based Systems Windows 10 Version 1903 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 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 10 Version 1803 for ARM64-based Systems Windows 10 Version 1803 for x64-based Systems Windows 10 Version 1803 for 32-bit Systems
	Internet Explorer 11： Windows Server 2016 Windows Server 2012 R2 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 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 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 1903 for ARM64-based Systems Windows 10 Version 1903 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 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 10 Version 1803 for ARM64-based Systems Windows 10 Version 1803 for x64-based Systems Windows 10 Version 1803 for 32-bit Systems
	Internet Explorer 9： Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2
CVE-2021-26867	Windows Server, version 20H2 (Server Core Installation) Windows 10 Version 20H2 for x64-based Systems Windows Server, version 2004 (Server Core installation) Windows 10 Version 2004 for x64-based Systems Windows Server, version 1909 (Server Core installation) Windows 10 Version 1909 for x64-based Systems
CVE-2021-26897	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 2004 (Server Core installation) Windows Server, version 1909 (Server Core installation) Windows Server 2019 (Server Core installation) Windows Server 2019 Windows Server, version 20H2 (Server Core Installation)
CVE-2021-27076	Microsoft SharePoint Foundation 2013 Service Pack 1 Microsoft Business Productivity Servers 2010 Service Pack 2 Microsoft SharePoint Server 2019 Microsoft SharePoint Enterprise Server 2016
CVE-2021-27077	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 Server, version 1909 (Server Core installation) 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 10 Version 1803 for ARM64-based Systems Windows 10 Version 1803 for x64-based Systems Windows 10 Version 1803 for 32-bit Systems Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2