MS.IE.chm.File.Handling.Security.Bypass

Description

This indicates an attack attempt to exploit a Security Bypass vulnerability in Microsoft Internet Explorer.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted CHM file. An attacker can exploit this by tricking an unsuspecting user into visiting a malicious webpage and execute arbitrary code within the context of the application.

Affected Products

Internet Explorer 11 on Windows 10 for 32-bit Systems
Internet Explorer 11 on Windows 10 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems
Internet Explorer 11 on Windows Server 2016
Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems

Impact

Security Bypass: Remote attackers can bypass security features of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8625

References