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Delta Controls enteliTOUCH 3.40.3935 Cookie User Password Disclosure

Medium
Advisory ID
ZSL-2022-5704
Release Date
14 April 2022
Vendor
Delta Controls Inc. - https://www.deltacontrols.com
Affected Version
3.40.3935, 3.40.3706, 3.33.4005
Tested On
DELTA enteliTOUCH
Summary

enteliTOUCH - Touchscreen Building Controller. Get instant access to the heart of your BAS. The enteliTOUCH has a 7-inch, high-resolution display that serves as an interface to your building. Use it as your primary interface for smaller facilities or as an on-the-spot access point for larger systems. The intuitive, easy-to-navigate interface gives instant access to manage your BAS.

Description

The application suffers from a cleartext transmission/storage of sensitive information in a Cookie. This allows a remote attacker to intercept the HTTP Cookie authentication credentials through a man-in-the-middle attack.

Proof of Concept
Disclosure Timeline
06.04.2022Vulnerability discovered.
06.04.2022Vendor contacted.
13.04.2022No response from the vendor.
14.04.2022Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
14.04.2022Initial release
20.04.2022Added reference [1], [2], [3] and [4]
29.05.2022Added reference [5] and [6]