Rewterz Threat Advisory – Microsoft Internet Explorer Multiple Vulnerabilities

SEVERITY: High

CATEGORY: Vulnerability

PUBLISH DATE: December 14, 2018

ANALYSIS SUMMARY:

The following vulnerabilities have been discovered in Microsoft Internet Explorer which can cause memory corruption, bypassing of certain security restrictions and execution of arbitrary code, if exploited.

CVE-2018-8643: Scripting engine improperly handles objects in memory in Internet Explorer, leading to execution of arbitrary code.

CVE-2018-8619: Internet Explorer VBScript execution policy does not properly restrict VBScript under specific conditions, leading to potential remote code execution.

CVE-2018-8625: VBScript engine improperly handles objects in memory, leading to remote code execution vulnerability.

CVE-2018-8631: Internet Explorers handles objects in memory improperly, leading to remote code execution vulnerability.

IMPACT

Remote code execution, Security bypass, Memory corruption

AFFECTED VENDORS

Microsoft

AFFECTED PRODUCTS

Microsoft Internet Explorer 9.x

Microsoft Internet Explorer 10.x

Microsoft Internet Explorer 11.x

REMEDIATION

Apply update.

Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 (KB4470199):

Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (KB4470199):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4470199

Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 (KB4470199): https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4470199

Internet Explorer 11 on Windows 8.1 for x64-based systems (KB4470199):

Internet Explorer 11 on Windows Server 2012 R2 (KB4470199):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4470199

Internet Explorer 11 on Windows 8.1 for 32-bit systems (KB4470199): https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4470199

Internet Explorer 10 on Windows Server 2012 (KB4470199): https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4470199

Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 (KB4471318):

Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (KB4471318):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471318

Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 (KB4471318): https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471318

Internet Explorer 11 on Windows RT 8.1 (KB4471320):

Apply update (please see the vendor’s service database for details).

Internet Explorer 11 on Windows 8.1 for x64-based systems (KB4471320):

Internet Explorer 11 on Windows Server 2012 R2 (KB4471320):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471320

Internet Explorer 11 on Windows 8.1 for 32-bit systems (KB4471320):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471320

Internet Explorer 11 on Windows Server 2016 (KB4471321):

Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems (KB4471321):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471321

Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems (KB4471321):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471321

Internet Explorer 11 on Windows 10 for x64-based Systems (KB4471323):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471323

Internet Explorer 11 on Windows 10 for 32-bit Systems (KB4471323):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471323

Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 (KB4471325):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471325

Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 (KB4471325):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471325

Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems (KB4471327):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471327

Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems (KB4471327):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471327

Internet Explorer 10 on Windows Server 2012 (KB4471330):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471330

Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems (KB4471332):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471332

Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems (KB4471332):

Internet Explorer 11 on Windows Server 2019 (KB4471332):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471332

Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems (KB4471332):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471332

Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems (KB4471329):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471329

Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems (KB4471324):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471324

Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems (KB4471329):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471329

Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems (KB4471324):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471324

Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 (KB4470199):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4470199

Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 (KB4470199):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4470199

Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems (KB4471324):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471324

Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems (KB4471329):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4471329

Note: Security updates for Windows RT 8.1, Windows Server 2016, and Windows 10 are available via e.g. Windows Update or Windows Update Catalog only.