張貼日期：2021/11/11

【資安漏洞預警】微軟Windows作業系統與應用程式存在多個安全漏洞，請儘速確認並進行更新！

主旨說明：【資安漏洞預警】微軟Windows作業系統與應用程式存在多個安全漏洞，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 資安訊息警訊 NISAC-ANA-202111-0417。

研究人員發現Windows作業系統與應用程式存在多個安全漏洞(CVE-2021-26443、38666、42292及42321)，遠端攻擊者可藉由漏洞進而執行任意程式碼。

影響平台:

CVE-2021-26443：

Windows 10 Version 1809 for x64-based Systems

Windows 10 Version 1909 for x64-based Systems

Windows 10 Version 2004 for x64-based Systems

Windows 10 Version 20H2 for x64-based Systems

Windows 10 Version 21H1 for x64-based Systems

Windows 11 for x64-based Systems

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)

CVE-2021-38666：

Remote Desktop client for Windows Desktop

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 11 for ARM64-based Systems

Windows 11 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)

CVE-2021-42292：

Microsoft 365 Apps for Enterprise for 32-bit Systems

Microsoft 365 Apps for Enterprise for 64-bit Systems

Microsoft Excel 2013 RT Service Pack 1

Microsoft Excel 2013 Service Pack 1 (32-bit editions)

Microsoft Excel 2013 Service Pack 1 (64-bit editions)

Microsoft Excel 2016 (32-bit edition)

Microsoft Excel 2016 (64-bit edition)

Microsoft Office 2013 RT Service Pack 1

Microsoft Office 2013 Service Pack 1 (32-bit editions)

Microsoft Office 2013 Service Pack 1 (64-bit editions)

Microsoft Office 2016 (32-bit edition)

Microsoft Office 2016 (64-bit edition)

Microsoft Office 2019 for 32-bit editions

Microsoft Office 2019 for 64-bit editions

Microsoft Office 2019 for Mac

Microsoft Office LTSC 2021 for 32-bit editions

Microsoft Office LTSC 2021 for 64-bit editions

Microsoft Office LTSC for Mac 2021

CVE-2021-42321：

Microsoft Exchange Server 2016 Cumulative Update 21

Microsoft Exchange Server 2016 Cumulative Update 22

Microsoft Exchange Server 2019 Cumulative Update 10

Microsoft Exchange Server 2019 Cumulative Update 11

建議措施:

目前微軟官方已針對這些漏洞釋出更新程式，請各機關聯絡維護廠商或參考以下網址進行更新：

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26443

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-38666

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42292

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321

參考資料:

https://www.ithome.com.tw/news/147751

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26443

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-38666

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42292

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321

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