OverTheWire - Bandit 6 to 11

Note:-Don't forget to logout before moving to next level
Level5 -> Level6
Question:-The password for the next level is stored in a file somewhere under the inhere directory and has all of the following properties:

• human-readable
• 1033 bytes in size
• not executable Answers:- use find command to when the properties of files are known

cd inhere
ls
find -size 1033c ! -executable
ssh [e-mail] -p 2220

Level6 -> Level7
Question:-The password for the next level is stored somewhere on the server and has all of the following properties:

• owned by user bandit7
• owned by group bandit6
• 33 bytes in size Answers:-

cd /
find / -user bandit7 -group bandit6 -size 33c

have to put rest of the thing is error so use 2>for stderr and send to dev/null

find / -user bandit7 -group bandit6 -size 33c 2>/dev/null
cat /var/lib/dpkg/info/bandit7.password
ssh [e-mail] -p 2220

Level7 -> Level8
Question:-The password for the next level is stored in the file data.txt next to the word millionth.
Answer:- use Grep for filtering the lines according to the word in the quotes, -n will display the line and line number

ls
grep -n “millionth” data.txt 
ssh [e-mail] -p 2220

Level8 -> Level9
Question:-The password for the next level is stored in the file data.txt and is the only line of text that occurs only once.
Answer:- use piping for combining commands

cat data.txt | sort | uniq -u
ssh [e-mail] -p 2220

Level9 -> Level10
Question:-The password for the next level is stored in the file data.txt in one of the few human-readable strings, preceded by several ‘=’ characters.
Answer:- "-E"indicates extended Grep that the pattern can symbols can repeat.

Strings data.txt | grep -E “=+”
ssh [e-mail] -p 2220

Level10 -> Level11
Question:-The password for the next level is stored in the file data.txt, which contains base64 encoded data.
Answer:- "-d" to decode the base64

Base64 -d data.txt
ssh [e-mail] -p 2220