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The Firefox updater created a directory writable by non...
Moderate severity
Unreviewed
Published
Aug 1, 2023
to the GitHub Advisory Database
•
Updated Apr 4, 2024
The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. This bug only affects Firefox on Windows. Other operating systems are unaffected. This vulnerability affects Firefox < 116 and Firefox ESR < 115.1.
The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user.
This bug only affects Firefox on Windows. Other operating systems are unaffected. This vulnerability affects Firefox < 116 and Firefox ESR < 115.1.
References