Microsoft Windows MHT File Mark-Of-The-Web Bypass Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to bypass the Mark-Of-The-Web security feature to execute arbitrary code on affected installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of .MHT files. The issue results from the lack of a security check on .MHT files located in shared folders. An attacker can leverage this vulnerability to execute code in the context of the current user.
Additional Details
Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29991
Disclosure Timeline
- 2024-02-06 - Vulnerability reported to vendor
- 2024-04-25 - Coordinated public release of advisory
- 2024-07-01 - Advisory Updated
Credit
Eduardo Braun Prado
