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Security analysis of the KNX smart building protocol

  • KNX is a protocol for smart building automation, e.g., for automated heating, air conditioning, or lighting. This paper analyses and evaluates state-of-the-art KNX devices from manufacturers Merten, Gira and Siemens with respect to security. On the one hand, it is investigated if publicly known vulnerabilities like insecure storage of passwords in software, unencrypted communication, or denialof-service attacks, can be reproduced in new devices. On the other hand, the security is analyzed in general, leading to the discovery of a previously unknown and high risk vulnerability related to so-called BCU (authentication) keys.

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Metadaten
Author:Malte Küppers, Marko SchubaORCiD, Georg Neugebauer, Tim Höner, Sacha HackORCiD
DOI:https://doi.org/10.1145/3600160.3605167
Parent Title (English):ARES '23: Proceedings of the 18th International Conference on Availability, Reliability and Security
Publisher:ACM
Document Type:Conference Proceeding
Language:English
Year of Completion:2023
Date of the Publication (Server):2023/09/01
First Page:1
Last Page:7
Note:
Article No.: 87

ARES 2023, August 29–September 01, 2023, Benevento, Italy
Link:https://doi.org/10.1145/3600160.3605167
Zugriffsart:campus
Institutes:FH Aachen / Fachbereich Elektrotechnik und Informationstechnik
collections:Verlag / ACM