資安訊息

【漏洞預警】微軟支援診斷工具存在安全漏洞(CVE-2022-30190)，攻擊者可藉此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 NISAC-ANA-202206-0978

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。

[影響平台:]

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。