htb-md5.py

from hashlib import md5
from bs4 import BeautifulSoup
import requests


def md(port: int) -> str:
	"""
	Returns the MD5 hash of the given input
	:param port: Port number of running instance
	:type port: integer
	:rtype: string
	"""
	
	url = 'http://docker.hackthebox.eu:{}/'.format(port)
	r = requests.session()
	req = r.get(url)

	scrape = BeautifulSoup(req.text, 'lxml')
	for target in scrape.find_all("h3"):
		print("[+] String: ", target.text)

		key = md5(str.encode(target.text)).hexdigest()
		print("[+] Hash: ", key)

		payload = {'hash': key}
		post_key = r.post(url, payload)

		scrape2 = BeautifulSoup(post_key.text, 'lxml')
		for flag in scrape2.find_all("p"):
			return "[+] Flag: ", flag.text

dst = input("Enter destination port: ")
print(md(dst))