Note: the device may not be impacted by all of these issues. The vulnerabilities are implied based on the software and version.
220 ProFTPD 1.3.1 Server (ProFTPD)
220 ESMTP Postfix (Debian/GNU)\r\n
OK [CAPABILITY LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN] Dovecot ready.\r\n
This is an unrestricted telnet server.\r\nPlease do not user for production purposes\r\n\r\n#
220 ProFTPD 1.3.1 Server (ProFTPD)\r\n
This is an unrestricted telnet server.\r\nPlease do not user for production purposes\r\n\r\n# bash: command not found\r\n#
220 ProFTPD 1.3.1 Server (ProFTPD)\r\n500 command not understood\r\n
+OK Dovecot ready.
OK [CAPABILITY LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN] Dovecot ready.
220 ProFTPD 1.3.1 Server (ProFTPD) 500 command not understood
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