【威胁通告】微软3月安全更新多个产品高危漏洞通告
2021-03-10
一. 漏洞概述
北京时间3月10日，微软发布3月安全更新补丁，修复了89个安全问题，涉及Microsoft Windows、Microsoft Office、Microsoft Exchange Server、Internet Explorer、Visual Studio等广泛使用的产品，其中包括远程代码执行和权限提升等高危漏洞类型。
本月微软月度更新修复的漏洞中，严重程度为关键（Critical）的漏洞有14个，重要（Important）漏洞有75个。请相关用户及时更新补丁进行防护，详细漏洞列表请参考附录。
尊龙凯时远程安全评估系统（RSAS）已具备微软此次补丁更新中大多数漏洞的检测能力（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等高危漏洞），请相关用户关注尊龙凯时远程安全评估系统系统插件升级包的更新，及时升级至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. 重点漏洞简述
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：
Internet Explorer 内存泄露漏洞（CVE-2021-26411）：
Internet Explorer在处理DOM对象时，存在一处double free漏洞，攻击者通过诱导用户点击恶意链接或文件进行触发，可导致远程代码执行，从而取得目标系统的控制权限。该漏洞曾被黑客组织用于针对专业安全研究者的APT攻击，目前漏洞细节已公开。
官方通告链接：
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26411
Windows Hyper-V 远程代码执行漏洞（CVE-2021-26867）：
使用了Plan-9平台配置的 Hyper-V虚拟客户端存在一个严重漏洞，经过身份验证的攻击者可在Hyper-V服务器上执行任意代码。
官方通告链接：
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26867
Windows DNS Server 远程代码执行漏洞（CVE-2021-26897）：
Windows DNS Server存在一个严重的远程代码执行漏洞，攻击者通过向目标主机发送特制的请求，可在目标主机上以system权限执行任意代码。启用安全区域更新可部分缓解此漏洞，但攻击者依然可以通过加入域的计算机攻击启用了安全区域更新的DNS服务器。目前该漏洞细节已公开。
官方通告链接：
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26897
Microsoft SharePoint Server 远程代码执行漏洞（CVE-2021-27076）：
Microsoft SharePoint Server存在远程代码执行漏洞。攻击者需要可以使用SharePoint服务器创建或修改网站，经过身份认证的攻击者可构造恶意数据执行反序列化攻击执行任意命令，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 权限提升漏洞（CVE-2021-27077）：
Windows内核模式驱动对内存对象处理不当导致的权限提升漏洞，经过身份验证的本地攻击者可利用此漏洞在目标系统上提升其权限以执行任意代码。目前已有漏洞细节披露。
官方通告链接：
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-27077
三. 影响范围
以下为重点关注漏洞的受影响产品版本，其他漏洞影响产品范围请参阅官方通告链接。
|
漏洞编号 |
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 |
四. 漏洞防护
4.1 补丁更新
目前微软官方已针对受支持的产品版本发布了修复以上漏洞的安全补丁，强烈建议受影响用户尽快安装补丁进行防护，官方下载链接：
https://msrc.microsoft.com/update-guide/releaseNote/2021-Mar
注：由于网络问题、计算机环境问题等原因，Windows Update的补丁更新可能出现失败。用户在安装补丁后，应及时检查补丁是否成功更新。
右键点击Windows图标，选择“设置(N)”，选择“更新和安全”-“Windows更新”，查看该页面上的提示信息，也可点击“查看更新历史记录”查看历史更新情况。
针对未成功安装的更新，可点击更新名称跳转到微软官方下载页面，建议用户点击该页面上的链接，转到“Microsoft更新目录”网站下载独立程序包并安装。
