Details
Bug
Closed
Description
A bug in includes/functions.php will cause all lookups to succeed if a domain with a wildcard (*.serverdomain.com) is configured as the default/search domain in the operating system configuration.
As a result, a lookup for userdomain.com will return successful, as userdomain.com.serverdomain.com would be valid due to the wildcard. The wildcard configuration is not uncommon.
This can be fixed easily without harm by suffixing a period (dot) to the end of the host as in the below code-snippet. Adding this dot ignores any default lookup domain.
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- includes/functions.php ###
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else if (function_exists('checkdnsrr'))
{ return (checkdnsrr($host.'.', $type)) ? true : false; }