openssh-3.9p1-8.RHEL4.12 "ssh localhost sudo su" will show the password in clear Possible work-arounds are: - Use "ssh -t" to force the creation of a tty on the ssh client side - Use the requiretty option in the sudoers file
The "requiretty" option added to the default /etc/sudoers in FC6 (RHEL5). Closing for RHEL4 as NOTABUG. Thanks for your report!