ZTE F460 and F660 cable modems allows remote attackers to obtain administrative access via sendcmd requests to web_shell_cmd.gch, as demonstrated by using “set TelnetCfg” commands to enable a TELNET service with specified credentials.
View the template here CVE-2014-2321.yaml
References:
https://yosmelvin.wordpress.com/2017/09/21/f660-modem-hack/