【資安漏洞預警】微軟Windows之MSHTML引擎存在安全漏洞(CVE-2021-40444)，請儘速確認並進行防護補強！

• 主旨說明：【資安漏洞預警】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，請儘速確認並進行防護補強！

• 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-202109-0479。
  • 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
• 常見問題(FAQ)

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