Disable unauthenticated access to cgi-bin/credits.cgi. The page
leaks the currently installed version of IPFire and the hardware
architecture.

Both information might make a successful attack much easier.

This issue can be reproduced by accessing https://[IPFire-IP]:444/cgi-bin/credits.cgi
and accepting a SSL certificate warning (if any).

Signed-off-by: Peter Müller <peter.mueller(a)link38.eu>
---
diff --git a/config/httpd/vhosts.d/ipfire-interface-ssl.conf b/config/httpd/vhosts.d/ipfire-interface-ssl.conf
index daac75742..4897d56d2 100644
--- a/config/httpd/vhosts.d/ipfire-interface-ssl.conf
+++ b/config/httpd/vhosts.d/ipfire-interface-ssl.conf
@@ -42,10 +42,6 @@
             Satisfy Any
             Allow from All
         </Files>
-        <Files credits.cgi>
-            Satisfy Any
-            Allow from All
-        </Files>
         <Files dial.cgi>
             Require user admin
         </Files>
diff --git a/config/httpd/vhosts.d/ipfire-interface.conf b/config/httpd/vhosts.d/ipfire-interface.conf
index 8783c632b..c7c05972e 100644
--- a/config/httpd/vhosts.d/ipfire-interface.conf
+++ b/config/httpd/vhosts.d/ipfire-interface.conf
@@ -34,10 +34,6 @@
             Satisfy Any
             Allow from All
         </Files>
-        <Files credits.cgi>
-            Satisfy Any
-            Allow from All
-        </Files>
         <Files dial.cgi>
             Require user admin
         </Files>