Lessons Learned extracting and decompressing files using the following tools: file, xxd -r, gunzip, bunsip2, and tar -xf Logging in On a kali vm/ linux machine Type: ssh bandit12@bandit.labs.overthewire.org -p 2220 5Te8Y4drgCRfCx8ugdwuEX8KFC6k2EUu Completing The Challenge The 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!) The Solution: Revamped: I decided to write a bash file that solves the problem. mkdir /tmp/a_name/ mv data.txt /tmp/a_name touch solver.sh chmod +x solver.sh add the following into solver.sh, can be done with nano and copy paste or you can type it out. file="$
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Lessons Learned using cyberchef for things like rot13 Logging in On a kali vm/ linux machine Type: ssh bandit11@bandit.labs.overthewire.org -p 2220 IFukwKGsFW8MOq3IRFqrxE1hxTNEbUPR Completing The Challenge The Goal: The password for the next level is stored in the file data.txt , where all lowercase (a-z) and uppercase (A-Z) letters have been rotated by 13 positions The Solution: bandit11@bandit:~$ cat data.txt Gur cnffjbeq vf 5Gr8L4qetPEsPk8htqjhRK8XSP6x2RHh The password is 5Te8Y4drgCRfCx8ugdwuEX8KFC6k2EUu This is known as rot13 and many free websites exist to solve this issue. CyberChef is a very good site/tool for this and can be downloaded