CVE-2020-3979 Information

Description

InstallBuilder for Qt Windows (versions prior to 20.7.0) installers look for plugins at a predictable location at initialization time writable by non-admin users. While those plugins are not required they are loaded if present which could allow an attacker to plant a malicious library which could result in code execution with the security scope of the installer.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://blog.installbuilder.com/2020/08/updates-and-bug-fixes-with-version-2070.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8