高危保安警报 (A21-04-02): Microsoft 产品多个漏洞 (2021年4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-Apr

有报告指除了 Microsoft Exchange 伺服器的漏洞，一个於 Desktop Window Manager 的漏洞 (CVE-2021-28310) 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 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 2010, 2013, 2013 RT, 2016, 2019, 2019 for Mac
• Microsoft Office Online Server
• Microsoft Office Web Apps 2010, Server 2013
• Microsoft Excel 2010, 2013, 2013 RT, 2016
• Microsoft Word 2010, 2013, 2013 RT, 2016
• Microsoft Outlook 2010, 2013, 2013 RT, 2016
• Microsoft 365 Apps for Enterprise
• Microsoft Exchange Server 2013, 2016, 2019
• Microsoft SharePoint Foundation 2010
• Microsoft SharePoint Enterprise Server 2013, 2016
• Microsoft SharePoint Server 2010, 2019
• Microsoft Visual Studio 2015, 2017, 2019
• Team Foundation Server 2015, 2017, 2018
• Azure DevOps Server 2019, 2020
• Azure Sphere
• Azure ms-rest-nodeauth Library
• Raw Image Extension
• Visual Studio Code
• Visual Studio Code - GitHub Pull Requests and Issues Extension, Kubernetes Tools, Maven for Java Extension
• VP9 Video Extensions

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-Apr
• https://www.hkcert.org/tc/security-bulletin/microsoft-monthly-security-update-april-2021
• https://us-cert.cisa.gov/ncas/current-activity/2021/04/13/apply-microsoft-april-2021-security-update-mitigate-newly
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26413
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26415 (to CVE-2021-26417)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27064
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27067
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27072
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27079
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27086
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27088 (to CVE-2021-27096)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28309 (to CVE-2021-28358)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28434 (to CVE-2021-28454)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28456 (to CVE-2021-28460)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28464
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28466
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28468 (to CVE-2021-28473)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28475
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28477
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28480 (to CVE-2021-28483)