高危保安警報 (A21-05-07): Microsoft 產品多個漏洞 (2021年5月)

描述:

Microsoft 發布了安全性更新以應對數個影響 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-May

有報告指在 Microsoft Windows 10 及部分 Windows Server 版本的遠端執行程式碼漏洞有可能被攻擊。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 Internet Explorer 9, 11
• Microsoft Windows 7, 8.1, RT 8.1, 10
• Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019
• Microsoft Windows Server, version 1909, version 2004, version 20H2
• Microsoft Office 2013, 2013 RT, 2016, 2019, 2019 for Mac
• 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 Exchange Server 2013, 2016, 2019
• Microsoft Accessibility Insights for Web
• Microsoft SharePoint Foundation 2013
• Microsoft SharePoint Enterprise Server 2016
• Microsoft SharePoint Server 2019
• Microsoft Visual Studio 2019
• .NET 5.0, Core 3.1
• Dynamics 365 for Finance and Operations
• Microsoft Lync Server 2013
• Skype for Business Server 2015, 2019
• Visual Studio 2019 for Mac version 8.9
• Visual Studio Code, Remote - Containers Extension
• Web Media Extensions
• common_utils.py (Neural Network Intelligence)

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-May
• https://www.hkcert.org/tc/security-bulletin/microsoft-monthly-security-update-may
• https://us-cert.cisa.gov/ncas/current-activity/2021/05/11/microsoft-releases-may-2021-security-updates
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24587
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24588
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26144
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26418
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26419
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26421
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26422
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27068
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28455
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28461
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28465
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28474
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28476
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28478
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28479
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31165 (to CVE-2021-31182)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31184 (to CVE-2021-31188)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31190 (to CVE-2021-31195)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31198
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31200
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31204
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31205
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31207 (to CVE-2021-31209)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31211
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31213
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31214
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31936