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-Aug
有报告指在 Microsoft Windows 10 及某些 Windows Server 版本的一个权限提升漏洞 (CVE-2021-36948)正受到攻击,Microsoft Windows 及 Server 中的多个漏洞 (CVE-2021-36936、CVE-2021-36942 及 CVE-2021-36947) 亦有很高受到网络攻击的风险。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 2004, version 20H2
- Microsoft Office 2019, 2019 for Mac
- Microsoft 365 Apps for Enterprise
- Microsoft SharePoint Enterprise Server 2013, 2016
- Microsoft SharePoint Server 2019
- Microsoft Visual Studio 2017, 2019, 2019 for Mac version 8.10
- Microsoft Azure Active Directory Connect, Provisioning Agent
- Microsoft Azure CycleCloud 7.9.10, 8.2.0
- Microsoft Azure Sphere
- Microsoft Dynamics 365 (on-premises) version 9.0, version 9.1
- Microsoft Dynamics 365 Business Central 2019, 2020
- Microsoft Dynamics NAV 2017, 2018
- Microsoft Malware Protection Engine
- .NET 5.0
- .NET Core 2.1, 3.1
- ASP.NET Core 2.1, 3.1, 5.0
- Remote Desktop client for Windows Desktop
- Windows Update Assistant
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-Aug
- https://www.hkcert.org/tc/security-bulletin/microsoft-monthly-security-update-august-2021
- https://us-cert.cisa.gov/ncas/current-activity/2021/08/10/microsoft-releases-august-2021-security-updates
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26423 (to CVE-2021-26426)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26428 (to CVE-2021-26433)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33762
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34471
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34478
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34480
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34483 (to CVE-2021-34487)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34524
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34530
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34532 (to CVE-2021-34537)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36926
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36927
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36932
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36933
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36936 (to CVE-2021-36938)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36940 (to CVE-2021-36943)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36945 (to CVE-2021-36950)