張貼日期：2022/04/22

【資安漏洞預警】Windows作業系統存在高風險安全漏洞(CVE-2022-26809)，請儘速確認並進行更新！

主旨說明：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。

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:

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

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：

關閉邊界防火牆的TCP 445埠。

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:

https://www.ithome.com.tw/news/150440

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26809

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