Tags: pwn 

Rating:

open wah in ghidra and see address of end flag function and send payload
to it (see solve.py on link here) and get flag
https://github.com/uniimmortal/writeups.uniimmortal.github.io/tree/main/angstromctf2022/wah

Original writeup (https://github.com/uniimmortal/writeups.uniimmortal.github.io/tree/main/angstromctf2022/wah).