diff -Naur sudo-1.8.5p2/plugins/sudoers/sudoers.in sudo-1.8.5p2-magellan/plugins/sudoers/sudoers.in
--- sudo-1.8.5p2/plugins/sudoers/sudoers.in	2012-06-09 15:18:54.047982798 +0200
+++ sudo-1.8.5p2-magellan/plugins/sudoers/sudoers.in	2012-06-09 15:20:22.953982796 +0200
@@ -62,6 +62,12 @@
 # Defaults!/usr/local/bin/sudoreplay !log_output
 # Defaults!/sbin/reboot !log_output
 
+#
+# Disable "ssh hostname sudo <cmd>", because it will show the password in clear.
+#         You have to run "ssh -t hostname sudo <cmd>".
+#
+Defaults requiretty
+
 # keep a sane environment for Magellan-Linux
 Defaults env_reset
 Defaults env_keep =  "COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC LS_COLORS"