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Solutions.md

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Level <user>:

(in ~/weird)

cat README.txt
cd ..
cat README.txt
su level1 (let_me_pass_please)

Level 1:

(in /var/level1)

Explain /var, /etc, /home, /root

cd ~
cat README.txt
cd -
cat .password
su level2 (you_found_me_yeah)

Level 2:

mv foo/bar/missing_part.yolo password.tar.part.d
chmod +x unzip.sh
./unzip.sh
su level3 (I_am_finally_reunited)

Level 3:

Correct file

import hashlib

hash = hashlib.sha3_256()
hash.update("No one expects".encode("utf-8"))
hash.update(" the spanish inquisition".encode("utf-8"))

print(hash.hexdigest())
su level4 (dfb7df1c9c530db5babda231838691bcf6ed022611cda1a899ccc12b651ff9f3)

Level 4:

Explain command diff

SQLite_parser.py

import sqlite3
conn = sqlite3.connect('sqlite.db')

c = conn.cursor()
c.execute('Select text_to_insert_in_file from data where is_useful=True')

text = c.fetchone()[0]
conn.close()

with open("./a.txt", "w") as file:
    file.write(text)

CSV_parser.py

import csv

with open("./data.csv") as csv_file:
  csv_reader = csv.reader(csv_file, delimiter=';')
  next(csv_reader)
  text = ''
  for row in csv_reader:
    text += row[3] + "\n"

with open("./b.txt", "w") as file:
    file.write(text)
diff a.txt b.txt
su level5 (greeting)

Level 5:

Explain command find, source

find / -name su 2> /dev/null
echo 'export PATH="$PATH:/var/bin"' >> .zshrc
source .zshrc
su (this_was_a_triumph, huge_success)

Find password in /etc/root.passwd

Root:

TADAAA