High Threat Security Alert (A21-06-02): Multiple Vulnerabilities in Microsoft Products (June 2021)


 

Published on: 09 June 2021

  
  

Description:

Microsoft has released security updates addressing multiple vulnerabilities which affect several Microsoft products or components. The list of security updates can be found at:
 
https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Jun

Reports indicated that multiple vulnerabilities in Microsoft Windows and Server (CVE-2021-31199, CVE-2021-31201, CVE-2021-31955, CVE-2021-31956, CVE-2021-33739 and CVE-2021-33742) are being actively exploited. System administrators are advised to take immediate action to patch your affected systems to mitigate the elevated risk of cyber attacks.

Affected Systems:

  • 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 2013, 2013 RT, 2016, 2019, 2019 for Mac
  • Microsoft Office Web Apps Server 2013
  • Office Online Server
  • Microsoft Excel 2013, 2013 RT, 2016
  • Microsoft Outlook 2013, 2013 RT, 2016
  • Microsoft 365 Apps for Enterprise
  • Microsoft Malware Protection Engine
  • Microsoft SharePoint Foundation 2013
  • Microsoft SharePoint Enterprise Server 2013,2016
  • Microsoft SharePoint Server 2019
  • Microsoft Visual Studio 2019
  • .NET 5.0
  • .NET Core 3.1
  • 3D Viewer
  • Intune management extension
  • Paint 3D
  • Visual Studio 2019 for Mac version 8.10
  • Visual Studio Code - Kubernetes Tools
  • VP9 Video Extensions

 

Impact:

Depending on the vulnerability exploited, a successful attack could lead to remote code execution, elevation of privilege, information disclosure, denial of service, security feature bypass and spoofing.

 

Recommendation:

Patches for affected products are available from the Windows Update / Microsoft Update Catalog. Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.

 

More Information:

  • https://msrc.microsoft.com/update-guide/en-us/releaseNote/2021-Jun
  • https://www.hkcert.org/security-bulletin/microsoft-monthly-security-update-jun-2021
  • https://us-cert.cisa.gov/ncas/current-activity/2021/06/08/microsoft-releases-june-2021-security-updates
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1675
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26414
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26420
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31199
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31201
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31938 (to CVE-2021-31946)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31948 (to CVE-2021-31960)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31962 (to CVE-2021-31978)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31980
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31983
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31985
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33739
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33742


Tag: Microsoft , Windows , Windows Server , Microsoft Office , Microsoft Office Web Apps , Office Online Server , Excel , Outlook , Microsoft 365 Apps , Microsoft Malware Protection Engine , SharePoint , Visual Studio , .NET , .NET Core , 3D Viewer , Intune Management Extension , Paint 3D , Visual Studio Code , VP9 Video Extensions
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