IDrive before 6.7.3.19 on Windows installs by default to %PROGRAMFILES(X86)%IDriveWindows with weak folder permissions granting any user modify permission (i.e., NT AUTHORITYAuthenticated Users:(OI)(CI)(M)) to the contents of the directory and its sub-folders. In addition, the program installs a service called IDriveService that runs as LocalSystem. Thus, any standard user can escalate privileges to NT AUTHORITYSYSTEM by substituting the service’s binary with a malicious one.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15351
Reference (s):
- https://github.com/active-labs/Advisories/blob/master/2020/ACTIVE-2020-004.md
- https://www.idrive.com/release-info#win