Calc

pwnhard
Task by George Zaytsev (@groke) · Par time: ~2 hrs
○○○○○○●○○○○●○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
500

This is my awesomely complex calculator! Can you find a way to make it give you access to OS?

nc -nv 109.233.56.91 7778

Here are your files