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UBICOD Medivision Digital Signage 1.5.1 CSRF Add Super Admin

Medium
Advisory ID
ZSL-2020-5574
Release Date
19 July 2020
Vendor
UBICOD Co., Ltd., MEDIVISION INC. - http://www.medivision.co.kr
Affected Version
Firmware 1.5.1 (2013.01.3)
CVE
N/A
Tested On
Apache/2.4.7 (Ubuntu), PHP/5.5.9-1ubuntu4.22
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.

Description

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.

Proof of Concept
Disclosure Timeline
19.06.2020Vulnerability discovered.
21.06.2020Vendor contacted.
18.07.2020No response from the vendor.
19.07.2020Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
19.07.2020Initial release
24.07.2020Added reference [1], [2] and [3]
02.08.2020Added reference [4]