Details
Disables the telnet access to the security appliance in the case it has been configured
Rationale:
Telnet is an unsecure protocol as username and password are conveyed in clear text during the administrator authentication and can be retrieved through network sniffing.
Solution
Run the following to remove the telnet access
hostname(config)#no telnet 0.0.0.0 0.0.0.0
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Cisco.