內容說明：

微軟支援診斷工具(Microsoft Support Diagnostic Tool, MSDT)為Windows作業系統用以蒐集裝置之診斷資料，並傳送給技術支援工程師以解決問題之工具。
研究人員發現微軟支援診斷工具存在名為Follina之安全漏洞(CVE-2022-30190)，攻擊者誘騙使用者開啟惡意Word檔案時，可利用URL協定呼叫微軟支援診斷工具以觸發此漏洞，進而遠端執行任意程式碼。

 

目前已知影響平台如下：

受影響版本如下：
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 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 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 11 for ARM64-based Systems
Windows 11 for x64-based Systems
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 20H2(Server Core Installation)

 

建議措施：

1.目前微軟官方已針對此漏洞釋出更新程式，請各機關可聯絡系統維護廠商或參考以下連結進行更新：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30190
2.若無法進行更新，可參考微軟官方網站採取下列緩解措施，以暫時關閉微軟支援診斷工具之URL協定：
(1)以系統管理員身分開啟「命令提示字元」視窗
(2)執行「reg export HKEY_CLASSES_ROOTms-msdt filename」指令進行機碼備份
(3)執行指令「reg delete HKEY_CLASSES_ROOTms-msdt /f」
(4)後續安裝修補程式後，若要還原機碼，請執行「reg import filename」
3.請更新電腦防毒軟體病毒碼。
4.請留意可疑電子郵件，注意郵件來源正確性，勿隨意點擊信件連結或開啟附件。
5.請加強內部宣導，提升人員資安意識，以防範駭客利用電子郵件進行社交工程攻擊。

 

參考資料：

1.https://www.ithome.com.tw/news/151211
2.https://www.ithome.com.tw/news/151238
3.https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30190
4.https://msrc-blog.microsoft.com/2022/05/30/guidance-for-cve-2022-30190-microsoft-support-diagnostic-tool-vulnerability/
5.https://support.microsoft.com/zh-tw/office/office-%E7%9A%84%E6%87%89%E7%94%A8%E7%A8%8B%E5%BC%8F%E9%98%B2%E8%AD%B7-9e0fb9c2-ffad-43bf-8ba3-78f785fdba46