PrinCube-hack

mods, improvements, hacks for the PrinCube based on APP 4.36, FW 4.17 released 30 Dec 2021 https://github.com/dukelec/mb/releases/tag/4.36_4.17 https://github.com/dukelec/mb

Added so far:

wifi client mode simple html shell

playing as root with webshell without firmware modification

Connect PrinCube with USB to your PC. Open shell.html in your browser and start hacking. maybe start with typing: whoami shell.html uses the usb ip (192.168.88.1) by default

Install:

this will enable wifi client mode by default and add a html webshell with root rights under /shell.html

Download this FW Mod
Edit mb_etc/wpa_client.conf to your needs
Create firmware tar file (on Windows use 7-zip, built-in tar does not set execute bit on run.sh correct)

tar cf princube-hack.tar mbrush-fw/

Zpload and install with webinterface When connected via USB is has the IP 192.168.88.1 http://192.168.88.1/

switch between client and ap mode

Disable wifi client mode and enable ap mode

rm /root/mb_conf/wifi_client  && reboot

Enable wifi client mode and disable ap mode

touch /root/mb_conf/wifi_client && reboot

To check which Wifi IP Address PrinCube got

ip a

TODO:

security!!! user roles (admin and user)
ntpdate
wifi ap fallback when wpa client mode fails
wifi config webinterface
dropbear?
webui improvments
...

Contributions are welcome :-)

usefull Links

https://blog.d-l.io/mb-faq

compatible cartriges

dukelec/mbrush#12

pinguinpfleger/PrinCube-hack