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影響等級：中

發現時間：2021-09-15

原標題名稱：【漏洞預警】【更新建議措施】微軟Windows之MSHTML引擎存在安全漏洞(CVE-2021-40444)，允許攻擊者遠端執行任意程式碼，請儘速確認並進行更新

內容說明 -

轉發 國家資安資訊分享與分析中心 資安訊息警訊 NISAC-ANA-202109-0767

研究人員發現微軟Windows內之瀏覽器排版引擎MSHTML存在安全漏洞(CVE-2021-40444)，MSHTML用於微軟瀏覽器與Office應用程式中，攻擊者可誘騙使用者開啟含有惡意ActiveX之Office文件，進而載入瀏覽器引擎並瀏覽惡意網頁，利用此漏洞遠端執行任意程式碼。

影響平台－

● 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 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 1809 for 32-bit Systems

● Windows 10 Version 1809 for ARM64-based Systems

● Windows 10 Version 1809 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 10 Version 2004 for 32-bit Systems

● Windows 10 Version 2004 for ARM64-based Systems

● Windows 10 Version 2004 for x64-based Systems

● Windows 10 Version 20H2 for 32-bit Systems

● Windows 10 Version 20H2 for ARM64-based Systems

● Windows 10 Version 20H2 for x64-based 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 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 x64-based Systems Service Pack 2

● Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)

● 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 2022

● Windows Server 2022 (Server Core installation)

● Windows Server, version 2004 (Server Core installation)

● Windows Server, version 20H2 (Server Core Installation)

建議措施－

目前微軟官方已針對此漏洞釋出更新程式，請各機關聯絡維護廠商或參考以下網址進行更新：https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444

參考資料－

1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444

2.https://www.ithome.com.tw/news/146584

3.https://docs.microsoft.com/zh-tw/microsoft-365/security/office-365-security/install-app-guard?view=o365-worldwide