file.copy operations in GruntJS are vulnerable to a TOCTOU race condition leading to arbitrary file write in GitHub repository gruntjs/grunt prior to 1.5.3. This vulnerability is capable of arbitrary file writes which can lead to local privilege escalation to the GruntJS user if a lower-privileged user has write access to both source and destination directories as the lower-privileged user can create a symlink to the GruntJS users .bashrc file or replace /etc/shadow file if the GruntJS user is root.
The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Grunt | Gruntjs | * | 1.5.3 (excluding) |
| Grunt | Ubuntu | bionic | * |
| Grunt | Ubuntu | esm-apps/bionic | * |
| Grunt | Ubuntu | esm-apps/focal | * |
| Grunt | Ubuntu | esm-apps/jammy | * |
| Grunt | Ubuntu | focal | * |
| Grunt | Ubuntu | impish | * |
| Grunt | Ubuntu | jammy | * |
| Grunt | Ubuntu | upstream | * |