Information
The Apache directories and files should be set to have a group Id of 'root', (or a root equivalent) group. This applies to all of the Apache software directories and files installed. The only expected exception is that the Apache web document root ('$APACHE_PREFIX/htdocs') is likely to need a designated group to allow web content to be updated (such as 'webupdate') through a change management process.
Rationale:
Securing Apache files and directories will reduce the probability of unauthorized modifications to those resources.
Solution
Perform the following:
Set ownership on the '$APACHE_PREFIX' directories such as '/usr/local/apache2':
$ chgrp -R root $APACHE_PREFIX