張貼日期：2021/08/12

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

主旨：【資安漏洞預警】微軟Windows作業系統存在多個安全漏洞，允許攻擊者取得權限或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-202108-0772。

研究人員發現Windows作業系統存在下列安全漏洞，遠端攻擊者可藉由漏洞取得權限或進而執行任意程式碼。

遠端執行任意程式碼漏洞：CVE-2021-26424、CVE-2021-34481、CVE-2021-36936及CVE-2021-36947。

權限提升漏洞：CVE-2021-34483與CVE-2021-36948。

欺騙漏洞：CVE-2021-36942。

影響平台:

CVE-2021-26424、CVE-2021-34481、CVE-2021-34483、CVE-2021-36936及CVE-2021-36947：

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 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 10 for 32-bit Systems

Windows 10 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 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 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, version 2004 (Server Core installation)

Windows Server, version 20H2 (Server Core Installation)

CVE-2021-36942：

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 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 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, version 2004 (Server Core installation)

Windows Server, version 20H2 (Server Core Installation)

CVE-2021-36948：

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 Server 2019

Windows Server 2019 (Server Core installation)

Windows Server, version 2004 (Server Core installation)

Windows Server, version 20H2 (Server Core Installation)

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/vulnerability/CVE-2021-26424

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34483

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36936

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36947

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948

參考資料:

https://thehackernews.com/2021/08/microsoft-releases-windows-updates-to.html

https://www.ithome.com.tw/news/146135

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26424

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34483

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36936

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36947

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948

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