Cayin CMS NTP Server 11.0 Remote Code Execution
Posted on 18 June 2020
This Metasploit module exploits an authenticated remote code execution vulnerability in Cayin CMS versions 11.0 and below. The code execution is executed in the system_service.cgi file's ntpIp Parameter. The field is limited in size, so repeated requests are made to achieve a larger payload. Cayin CMS-SE is built for Ubuntu 16.04 (20.04 failed to install correctly), so the environment should be pretty set and not dynamic between targets. Results in root level access.
