web_shell_cmd.gch on ZTE F460 and F660 cable modems allows remote attackers to obtain administrative access via sendcmd requests, as demonstrated by using "set TelnetCfg" commands to enable a TELNET service with specified credentials. Per: http://www.kb.cert.org/vuls/id/600724
" It has been reported that the web_shell_cmd.gch script is sometimes accessible from the WAN interface making exploitation of this backdoor from the Internet possible in certain cases. "
Publication date: Tue, 11 Mar 2014 18:01:00 +0000