This alert is originally published and can be viewed at www.cisecurity.org
OVERVIEW:
Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
THREAT INTELLIGENCE:
There are currently no reports of these vulnerabilities being exploited in the wild.
SYSTEMS AFFECTED:
Microsoft Windows 7, 8.1, RT 8.1, and 10
Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016
Microsoft Windows Server Core Installation 2008, 2008 R2, 2012, 2012 R2, 2016
Microsoft Office 2007, 2010, 2013, 2013 RT, 2016, 2016 Click-to-Run
Microsoft Internet Explorer 9, 10, 11
Microsoft Edge
Microsoft SharePoint Server 2010
Microsoft SharePoint Enterprise Server 2013, 2016
Microsoft .NET Framework 2.0, 3.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2
Microsoft .NET Core 2.1
Microsoft ASP.NET Core 2.1
ChakraCore
Microsoft Lync for Mac 2011
C SDK for Azure IoT
RISK:
Government:
Large and medium government entities: HIGH
Small government entities: MEDIUM
Businesses:
Large and medium business entities: HIGH
Small business entities: MEDIUM
Home Users:
LOW
TECHNICAL SUMMARY:
Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for code execution.
A full list of all vulnerabilities can be found at the link below:
https://portal.msrc.microsoft.com/en-us/security-guidance/summary
Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
RECOMENDATIONS:
We recommend the following actions be taken:
Apply appropriate patches or appropriate mitigations provided by Microsoft to vulnerable systems immediately after appropriate testing
Run all software as a non-privileged user (one without administrative rights) to diminish the effects of a successful attack.
Remind all users not to visit untrusted websites or follow links provided by unknown or untrusted sources.
Inform and educate users regarding threats posed by hypertext links contained in emails or attachments especially from untrusted sources
Apply the Principle of Least Privilege to all systems and services.
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