[WarGame] Bandit, Level 12 → Level 13

[WarGame] Bandit, Level 12 → Level 13

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Problem

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반복 압축된 파일이, hexdump로 존재한다.

xxd로 까면 되는데, 여러번 압축이 되어 있다고 한다.

압축 횟수가 10번이 넘어갈까..? for문으로 sh 짜야하는게 아닐지..?

 

 

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Solving

hexdump 풀고, 파일 형식 조회하고 이름 바꾸고 압축 풀고 무한 반복을 했다.

아래 스크립트가 있으니, 참고하세요.

(왜 이런 문제를 낸거야)

bandit12@bandit:~$ cp data.txt /tmp/rojae
bandit12@bandit:~$ cd /tmp/rojae
bandit12@bandit:/tmp/rojae$ ls -rtl
total 4
-rw-r----- 1 bandit12 bandit12 2573 Mar 18 19:28 data.txt
bandit12@bandit:/tmp/rojae$ file data.txt
data.txt: ASCII text
bandit12@bandit:/tmp/rojae$ xxd -r data.txt data
bandit12@bandit:/tmp/rojae$ file data
data: gzip compressed data, was "data2.bin", last modified: Tue Feb 21 22:02:52 2023, max compression, from Unix, original size modulo 2^32 564
bandit12@bandit:/tmp/rojae$ mv data data.gz
bandit12@bandit:/tmp/rojae$ gzip -d data.gz
bandit12@bandit:/tmp/rojae$ file data
data: bzip2 compressed data, block size = 900k
bandit12@bandit:/tmp/rojae$ cp data data.bz2
bandit12@bandit:/tmp/rojae$ file data.bz2
data.bz2: bzip2 compressed data, block size = 900k
bandit12@bandit:/tmp/rojae$ rm data.txt
bandit12@bandit:/tmp/rojae$ bzip2 -d data.bz2
bandit12@bandit:/tmp/rojae$ file data.out
data.out: gzip compressed data, was "data4.bin", last modified: Tue Feb 21 22:02:52 2023, max compression, from Unix, original size modulo 2^32 20480
bandit12@bandit:/tmp/rojae$ mv data.out data.gz
bandit12@bandit:/tmp/rojae$ gzip -d data.gz
gzip: data already exists; do you wish to overwrite (y or n)? y
bandit12@bandit:/tmp/rojae$ ls
data
bandit12@bandit:/tmp/rojae$ file data
data: POSIX tar archive (GNU)
bandit12@bandit:/tmp/rojae$ mv data data.tar
bandit12@bandit:/tmp/rojae$ tar -xvf data.tar 
data5.bin
bandit12@bandit:/tmp/rojae$ file data5.bin 
data5.bin: POSIX tar archive (GNU)
bandit12@bandit:/tmp/rojae$ tar -xvf data5.bin
data6.bin
bandit12@bandit:/tmp/rojae$ tar -xvf data6.bin
data8.bin
bandit12@bandit:/tmp/rojae$ file data8.bin
data8.bin: gzip compressed data, was "data9.bin", last modified: Tue Feb 21 22:02:52 2023, max compression, from Unix, original size modulo 2^32 49
bandit12@bandit:/tmp/rojae$ mv data8.bin data8.gz
bandit12@bandit:/tmp/rojae$ gzip -d data8.gz
bandit12@bandit:/tmp/rojae$ file data8
data8: ASCII text
bandit12@bandit:/tmp/rojae$ cat data8
The password is wbWdlBxEir4CaE8LaPhauuOo6pwRmrDw
bandit12@bandit:/tmp/rojae$ 

 

 

복붙하면 사용 가능하도록 만들었다.

cd ~
mkdir /tmp/rojae
cp data.txt /tmp/rojae
cd /tmp/rojae
xxd -r data.txt data
mv data data.gz
gzip -d data.gz
cp data data.bz2
rm data.txt
bzip2 -d data.bz2
mv data data.bz2
bzip2 -d data.bz2
mv data data.gz
gzip -d data.gz
mv data data.tar
tar -xvf data.tar 
tar -xvf data5.bin
tar -xvf data6.bin
file data8.bin
mv data8.bin data8.gz
gzip -d data8.gz
file data8
cat data8

 

이렇게 푸는게 맞나 싶었지만, 맞았으니

패스했다.

 

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Refer 

https://overthewire.org/wargames/bandit/bandit13.html