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-Nov
有報告指 Microsoft Exchange Server 中的一個遠端執行程式碼漏洞 (CVE-2021-42321) 及 Microsoft Excel 中的一個繞過保安功能漏洞 (CVE-2021-42292) 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 Edge (Chromium-based)
- 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 365 Apps for Enterprise
- Microsoft Dynamics 365 (on-premises) version 9.0, version 9.1
- Microsoft Exchange Server 2013, 2016, 2019
- Microsoft SharePoint Enterprise Server 2013
- Microsoft Visual Studio 2015, 2017, 2019
- Microsoft Azure RTOS
- Microsoft Azure Sphere
- 3D Viewer
- Microsoft Malware Protection Engine
- Power BI Report Server
- Remote Desktop client for Windows Desktop
- Visual Studio Code
- FSLogix
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、仿冒詐騙及篡改，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-Nov
- https://www.hkcert.org/tc/security-bulletin/microsoft-monthly-security-update-november-2021
- https://us-cert.cisa.gov/ncas/current-activity/2021/11/09/microsoft-releases-november-2021-security-updates
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3711
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26443
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26444
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36957
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38631
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38665
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38666
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40442
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41349
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41351
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41356
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41366 (to CVE-2021-41368)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41370 (to CVE-2021-41379)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42274 (to CVE-2021-42280)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42282 (to CVE-2021-42288)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42291
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42292
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42296
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42298
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42300 (to CVE-2021-42305)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42316
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42319
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42321 (to CVE-2021-42323)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43208
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43209