WinZip Mark-of-the-Web Bypass Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to bypass the Mark-of-the-Web protection mechanism on affected installations of WinZip. 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 archive files. When opening an archive that bears the Mark-of-the-Web, WinZip removes the Mark-of-the-Web from the archive file. Following extraction, the extracted files also lack the Mark-of-the-Web. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current user.
Additional Details
This vulnerability has been patched for the subscription and perpetual license versions listed below. * Subscription: 76.8 and later versions * Perpetual license versions: * 29.0 and later versions * 28.0.16371 and later versions * 27.0.16370 and later versions
Disclosure Timeline
- 2024-05-03 - Vulnerability reported to vendor
- 2024-09-17 - Coordinated public release of advisory
- 2025-03-28 - Advisory Updated
Credit
Peter Girnus (@gothburz) of Trend Micro Zero Day Initiative
