【安全通告】微软6月安全更新多个产品高危漏洞通告

2021-06-10

一. 漏洞概述

6月9日，海王捕鱼CERT监测到微软发布6月安全更新补丁，修复了50个安全漏洞，涉及Windows、Microsoft Office、Microsoft Edge、Visual Studio 、SharePoint Server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5个，重要（Important）漏洞有45个。请相关用户尽快更新补丁进行防护。完整漏洞列表请参考附录。

绿盟远程安全评估系统（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-2021-31959、CVE-2021-31963、CVE-2021-33742等高危漏洞），请相关用户关注绿盟远程安全评估系统系统插件升级包的更新，及时升级至V6.0R02F01.2305，官网链接：http://update.nsfocus.com/update/listRsasDetail/v/vulsys。

参考链接：

https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Jun

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：

Windows MSHTML Platform 远程代码执行漏洞（CVE-2021-33742）：

Windows MSHTML Platform存在远程代码执行漏洞，该漏洞由MSHTML的渲染引擎 Trident导致，未授权的远程攻击者可通过诱导用户打开特制文件或访问恶意网站进行利用，从而控制用户计算机系统，目前此漏洞已发现在野利用。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33742

Microsoft Defender 远程代码执行漏洞（CVE-2021-31985）：

Microsoft Defender存在远程代码执行漏洞，该漏洞可绕过Defender的防御策略，攻击者通过构造特制的二进制程序并诱导用户打开，即可在目标系统上执行任意代码。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31985

Microsoft SharePoint Server 远程代码执行漏洞（CVE-2021-31963）：

Microsoft SharePoint Server存在远程代码执行漏洞，经过身份认证的攻击者可通过构造恶意http请求执行反序列化攻击，从而接管目标服务器。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31963

Kerberos AppContainer 安全功能绕过漏洞（CVE-2021-31962）：

Kerberos AppContainer 存在安全功能绕过漏洞，此漏洞允许攻击者绕过 Kerberos 身份验证，对任意服务主体名称进行身份验证。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31962

Windows Print Spooler 权限提升漏洞（CVE-2021-1675）：

Windows Print Spooler 存在权限提升漏洞，Print Spooler是Windows系统中用于管理打印相关事务的服务，微软在公告中将该漏洞标记为Important级别的本地权限提升漏洞，但实际上在域环境中合适的条件下，无需任何用户交互，未授权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。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-1675

Microsoft Enhanced Cryptographic Provider 权限提升漏洞（CVE-2021-31199/CVE-2021-31201）：

Microsoft Enhanced Cryptographic Provider存在两个权限提升漏洞（CVE-2021-31199/CVE-2021-31201），本地攻击者可以绕过Microsoft Enhanced Cryptographic Provider的安全限制读取和修改受限制的信息。这两个漏洞被攻击者用于与Adobe Reader的漏洞（CVE-2021-28550）结合使用，攻击者通过诱导用户打开特制的 PDF文件，从而实现远程任意代码执行。目前已发现在野利用。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31199

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31201

Windows NTFS 权限提升漏洞（CVE-2021-31956）：

Windows NTFS存在权限提升漏洞，此漏洞为ntfs.sys 中基于堆的缓冲区溢出漏洞，经过身份认证的攻击者可通过运行特制的程序进行系统提权。攻击者通常通过诱导用户打开特制的文件来利用此漏洞。该漏洞由卡巴斯基的研究人员发现，并将其关联到PuzzleMaker Group，该组织将此漏洞与Windows Kernel信息泄露漏洞（CVE-2021-31955）以及Chrome远程代码执行漏洞结合使用，可实现Chrome沙箱逃逸并获取目标系统权限。目前已发现在野利用。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31956

Microsoft DWM Core Library 权限提升漏洞（CVE-2021-33739）：

Microsoft DWM Core Library存在权限提升漏洞，经过身份认证的攻击者可通过运行特制的程序进行提权。攻击者通常通过诱导用户打开特制的文件来利用此漏洞。目前该漏洞细节已公开，且已发现在野利用。

官方通告链接：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-33739

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-2021-33742	Windows Server 2012 R2 Windows Server 2012 Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 for x64-based Systems Service Pack 2 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 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 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 Windows 10 Version 1809 for ARM64-based Systems Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems
CVE-2021-31985	Microsoft Malware Protection Engine < 1.1.18200.3
CVE-2021-31963	Microsoft SharePoint Foundation 2013 Service Pack 1 Microsoft SharePoint Server 2019 Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Microsoft SharePoint Enterprise Server 2016
CVE-2021-31962 CVE-2021-1675 CVE-2021-31199 CVE-2021-31201 CVE-2021-31956	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
CVE-2021-33739	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