The host is installed with Mac OS X 10.6.8 or OS X Lion v10.7 to v10.7.4 and is prone to an information disclosure vulnerability. A flaw is present in the application, which is caused by an error in mod_proxy when configured in reverse proxy mode and using the RewriteRule or ProxyPassMatch directives with a pattern match. Successful exploitation allows remote attackers to gain unauthorized access to internal servers to obtain sensitive information.