The UNIXY cPanel plugin comes with a Web interface to manage Varnish via cPanel WHM. The cPanel app takes the complexity out of Varnish in a consolidated one-stop interface. The script allows you to uninstall Varnish, modify Varnish settings, lookup caching stats, refresh the Varnish cache, restart Varnish, and much more!
A malicious user can view the contents of any file on the server regardless of ownership due Varnish being installed by the plugin using an insecure manner.
We have deemed this vulnerability to be rated as HIGH due to the fact that any file, including /etc/shadow, can be viewed.
This vulnerability was tested against UNIXY cPanel Varnish v1.8.4 and is believed to exist in all prior versions.
This vulnerability was *silently* patched in UNIXY cPanel Varnish v1.8.6.