Add error handling to the module

Author: smcintyre-r7

modules/auxiliary/gather/kerberoast.rb

@@ -66,6 +66,14 @@ def run
     else
       run_user
     end
+  rescue Errno::ECONNRESET
+    fail_with(Failure::Disconnected, 'The connection was reset.')
+  rescue Rex::ConnectionError => e
+    fail_with(Failure::Unreachable, e.message)
+  rescue Rex::Proto::Kerberos::Model::Error::KerberosError => e
+    fail_with(Failure::NoAccess, e.message)
+  rescue Net::LDAP::Error => e
+    fail_with(Failure::Unknown, "#{e.class}: #{e.message}")
   end
 
   def run_user