描述:
Microsoft 发布了安全性更新以应对影响数个 Microsoft 产品或元件的多个漏洞。有关安全性更新的列表，请参考以下网址:
https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Nov
有报告指 Microsoft Exchange Server 中的一个远端执行程式码漏洞 (CVE-2021-42321) 及 Microsoft Excel 中的一个绕过保安功能漏洞 (CVE-2021-42292) 正受到攻击。系统管理员应立即为受影响的系统安装修补程式，以减低受到网络攻击的风险。
受影响的系统:
- 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
影响:
成功利用这些漏洞可以导致远端执行程式码、权限提升、泄漏资讯、服务受阻断、绕过保安功能、仿冒诈骗及篡改，视乎攻击者利用哪个漏洞而定。
建议:
受影响产品的修补程式可在 Windows Update 或 Microsoft Update Catalog 获取。受影响系统的用户应遵从产品供应商的建议，立即采取行动以降低风险。
进一步信息:
- 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