Arenanet · Guild Wars 2 · CVE-2020-27384
Name of the Vulnerable Software and Affected Versions:
Guild Wars 2 launcher version 106916
Description:
The issue arises from improper permissions set on the Guild Wars 2 directory and its contents, allowing any authenticated user to modify files, including the Gw2-64.exe executable. This is due to the 'F' flag (Full Control) being set for the 'Everyone' group, making the directory and its files world-writable.
Recommendations:
For Guild Wars 2 launcher version 106916, consider restricting the permissions on the Guild Wars 2 directory and its contents to prevent unauthorized modifications, specifically removing the 'F' flag (Full Control) for the 'Everyone' group.