高危保安警报 (A21-05-07): Microsoft 产品多个漏洞 (2021年5月)

描述:

Microsoft 发布了安全性更新以应对数个影响 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-May

有报告指在 Microsoft Windows 10 及部分 Windows Server 版本的远端执行程式码漏洞有可能被攻击。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 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、绕过保安功能及仿冒诈骗，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-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