"The conventional wisdom for several years has been that if you
were using SSH (secure shell) to connect to a server from a remote
client, rather than Telnet or another unsecure protocol, you were
safe. However, a few vulnerabilities have been revealed recently in
versions of SSH, leading some IT administrators to wonder just how
secure this vital standard really is.
"For example, the most recent advisory issued by the Computer
Emergency Response Team (CERT) described multiple vulnerabilities
in SSH implementations that could allow an attacker to usurp
control of a remote server by taking advantage of a buffer
"However, armed with an understanding of SSH, as well as the
potential options available, system administrators should be able
to make the best choice for their particular enterprise..."