ZTE F460/F660 Backdoor Unauthorized Access Vulnerability

Summary
ZTE F460/F660 are prone to an unauthorized-access vulnerability.
Impact
Attackers can exploit this issue to execute arbitrary commands with administrator level access on the affected device. This may aid in further attacks.
Solution
Ask the Vendor for an update.
Insight
web_shell_cmd.gch on ZTE F460 and F660 cable modems allows remote attackers to obtain administrative access via sendcmd requests
Detection
Try to execute the 'ifconfig' command with a HTTP GET request and check the response.
References