CVE-2018-8174

A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka “Windows VBScript Engine Remote Code Execution Vulnerability.” This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Recent assessments:

zeroSteiner at April 10, 2020 4:34pm UTC reported:

This vulnerability is a Use-After-Free in the Microsoft VBScript engine. Originally exploited in the wild, attackers used a technique to force the exploit code to be opened with Internet Explorer by embedding a resource into a Rich Text File (RTF). This technique would allow attackers to more reliably exploit targets, even when a non-IE browser was configured as the default.

The Use After Free is related to arbitrary VB object. When two arrays reference the same object, and one array is deleted, the second array is left with a dangling reference.

Assessed Attacker Value: 3
Assessed Attacker Value: 3Assessed Attacker Value: 3