Learn Linux Command by Playing Bandit Wargame [Level 12 → Level 13]

Learn linux command by playing Bandit wargame. The Bandit wargame is aimed at absolute beginners. It will teach the basics needed to be able to play other wargames. Below is the solution of Level 12 → Level 13.

In this post we will learn about various compression techniques and
how to decompress file. We will learn how to convert binary to hex file
and vice-versa.

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Bandit Level 0 to Level 3
Bandit Level 4 to Level 8
Bandit Level 9 to Level 11

Level Goal

The password for the next level is stored in the file data.txt, which is a hexdump of a file that has been repeatedly compressed. For this level it may be useful to create a directory under /tmp in which you can work using mkdir. For example: mkdir /tmp/myname123. Then copy the datafile using cp, and rename it using mv (read the manpages!)

Commands you may need to solve this level

grep, sort, uniq, strings, base64, tr, tar, gzip, bzip2, xxd, mkdir, cp, mv, file

Solution :

Command to connect remote host :

ssh [email protected] -p 2220

5Te8Y4drgCRfCx8ugdwuEX8KFC6k2EUu

As mentioned in question make a new directory in /tmp and rename the file.

xxd

-r

myfile.txt

myfile1.bin

xxd -r myfile.txt > myfile1.bin

Using command

file myfile1.bin

myfile1.bin

zcat

gzip

zcat myfile1.bin > myfile2

Again using

file

myfile2

bzcat

bzip2

bzcat myfile2 > myfile3

myfile3

zcat

myfile4

myfile4

tar

x

f

v

tar -xvf myfile4

This command outputs file

data5.bin

tar

data5.bin

data6.bin

data6.bin

bzcat

myfile7

myfile7

tar

data8.bin

data8.bin

zcat

myfile9

myfile9

cat myfile9

The password for the next level is

8ZjyCRiBWFYkneahHwxCv3wb2a1ORpYL

Reference : The Linux Command Line – A Complete Introduction
https://linux.die.net/man/1/xxd

Next Post

Bandit Level 13 to Level 15
Bandit Level 16 to Level 18
Bandit Level 19 to Level 20
Bandit Level 21 to Level 22
Bandit Level 23 → Level 24
Bandit Level 24 → Level 25
Bandit Level 25 to Level 26
Bandit Level 27 to Level 31
Bandit Level 32 → Level 33

Originally posted at Programmercave

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