Mario bros!

PWN Challenges by EZ-CTF

Screenshot of challenge

Description

Read the flag!

nc 159.223.209.120 7777

Hint

Mario's favorite shortcut!

Writeup

When you run the program it will look something like this

output

So, from this we can notice one thing, it is taking input and printing the same input. We can find printing or formatting vulnerabilities.

Yes, we know such payload: & cat flag.txt

& cat flag.txt

And boom, we got the flag 🎉

Flag

EZ-CTF{UNSECUR3_B4SH}