高危保安警報 (A21-10-11): Microsoft 產品多個漏洞 (2021年10月)

描述:

Microsoft 發布了安全性更新以應對影響數個 Microsoft 產品或元件的多個漏洞。有關安全性更新的列表，請參考以下網址:

https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Oct

有報告指在 Microsoft Windows 及 Server 的一個權限提升漏洞 (CVE-2021-40449) 正受到攻擊。系統管理員應立即為受影響的系統安裝修補程式，以減低受到網絡攻擊的風險。

受影響的系統:

• Microsoft Windows 7, 8.1, RT 8.1, 10, 11
• Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019, 2022
• Microsoft Windows Server, version 2004, version 20H2
• Microsoft Office 2013, 2013 RT, 2016, 2019, 2019 for Mac, LTSC 2021, LTSC for Mac 2021
• Microsoft Office Online Server
• Microsoft Office Web Apps Server 2013
• Microsoft Excel 2013, 2013 RT, 2016
• Microsoft Word 2013, 2013 RT, 2016
• Microsoft 365 Apps for Enterprise
• Microsoft Dynamics 365 (on-premises) version 9.0, version 9.1
• Microsoft Dynamics 365 Customer Engagement V9.0, V9.1
• Microsoft Exchange Server 2013, 2016, 2019
• Microsoft SharePoint Foundation 2013
• Microsoft SharePoint Enterprise Server 2013, 2016
• Microsoft SharePoint Server 2019
• Microsoft Visual Studio 2017, 2019
• System Center 2012 R2 Operations Manager, 2016 Operations Manager, 2019 Operations Manager
• .NET 5.0
• PowerShell 7.1
• Intune management extension

影響:

成功利用這些漏洞可以導致遠端執行程式碼、權限提升、泄漏資訊、服務受阻斷、繞過保安功能及仿冒詐騙，視乎攻擊者利用哪個漏洞而定。

建議:

受影響產品的修補程式可在 Windows Update 或 Microsoft Update Catalog 獲取。受影響系統的用戶應遵從產品供應商的建議，立即採取行動以降低風險。

進一步資訊:

• https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Oct
• https://www.hkcert.org/tc/security-bulletin/microsoft-monthly-security-update-october-2021
• https://us-cert.cisa.gov/ncas/current-activity/2021/10/12/microsoft-releases-october-2021-security-updates
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1971
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3449 (to CVE-2021-3450)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26427
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26441 (to CVE-2021-26442)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34453
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36953
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36970
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38662 (to CVE-2021-38663)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38672
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40443
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40449 (to CVE-2021-40450)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40454 (to CVE-2021-40457)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40460 (to CVE-2021-40489)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41330 (to CVE-2021-41332)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41334 (to CVE-2021-41340)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41342 (to CVE-2021-41348)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41350
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41352 (to CVE-2021-41355)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41357
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41361
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41363