CVE-2024-29188
Malicious directory junction can cause WiX RemoveFoldersEx to possibly delete elevated files
Description
### Summary The custom action behind WiX's `RemoveFolderEx` functionality could allow a standard user to delete protected directories. ### Details `RemoveFolderEx` deletes an entire directory tree during installation or uninstallation. It does so by recursing every subdirectory starting at a specified directory and adding each subdirectory to the list of directories Windows Installer should delete. If the setup author instructed `RemoveFolderEx` to delete a per-user folder from a per-machine installer, an attacker could create a directory junction in that per-user folder pointing to a per-machine, protected directory. Windows Installer, when executing the per-machine installer after approval by an administrator, would delete the target of the directory junction.
How to fix CVE-2024-29188
To remediate CVE-2024-29188, upgrade the affected package to a fixed version below.
- —upgrade to 4.0.5 or later
- —upgrade to 3.14.1 or later
Is CVE-2024-29188 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.0.5
- from 0, < 3.14.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.9 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H |