[清大計中]【漏洞預警】Windows作業系統存在高風險安全漏洞(CVE-2022-26809),允許攻擊者遠端執行任意程式碼,請儘速確認並進行更新 - 國立清華大學工程與系統科學系
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[清大計中]【漏洞預警】Windows作業系統存在高風險安全漏洞(CVE-2022-26809),允許攻擊者遠端執行任意程式碼,請儘速確認並進行更新

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 2022-04-20 16:24:03
影響等級    
[主旨說明:]【漏洞預警】Windows作業系統存在高風險安全漏洞(CVE-2022-26809),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 NISAC-ANA-202204-0651

研究人員發現Windows作業系統存在高風險安全漏洞(CVE-2022-26809),攻擊者可將特別製作之遠端程序呼叫(Remote Procedure Call,簡稱RPC)傳送至RPC主機,即可獲得與RPC服務相同之權限,進而於伺服器上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)

此訊息僅發送到「區縣市網路中心」,煩請貴單位協助公告或轉發
[影響平台:]
受影響版本如下: 
● 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 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 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 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 
● 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,請各機關聯絡維護廠商或參考下列網址進行更新:https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26809

2.若無法更新若無法更新至最新版本,請參考微軟官方網頁之「Mitigations」一節,採取下列緩解措施:

(1)關閉邊界防火牆的TCP 445埠。

(2)參考下列官方指引保護SMB流量:https://docs.microsoft.com/zh-tw/windows-server/storage/file-server/smb-secure-traffic
[參考資料:]
1. https://www.ithome.com.tw/news/150440
2. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26809
(此通報僅在於告知相關資訊,並非為資安事件),如果您對此通報的內容有疑問或有關於此事件的建議,歡迎與我們連絡。
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