【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

教育機構ANA通報平台

發佈編號 發佈時間
事故類型 ANA-漏洞預警 發現時間 2021-09-09 15:45:30
影響等級    
[主旨說明:]【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。

情資分享等級: WHITE(情資內容為可公開揭露之資訊)
[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:]
微軟預定於9月份安全性更新中釋出此漏洞之更新程式,請各機關聯絡設備維護廠商或參考以下建議措施:

1.避免開啟來路不明之Office文件。

2.部署政府組態基準(GCB)設定。

3.持續留意更新程式釋出進度,更新程式釋出前可參考微軟官方網頁(https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444),評估是否採取緩解措施。

[參考資料:]
1. <href=https: msrc.microsoft.com="" update-guide="" vulnerability="" cve-2021-40444="">https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444
2. <href=https: www.ithome.com.tw="" news="" 146584="">https://www.ithome.com.tw/news/146584
3. <href=https: docs.microsoft.com="" zh-tw="" microsoft-365="" security="" office-365-security="" install-app-guard?view="o365-worldwide">https://docs.microsoft.com/zh-tw/microsoft-365/security/office-365-security/install-app-guard?view=o365-worldwide
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