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Novel weaknesses in IEC 62351 protected Smart Grid control systems

 
: Strobel, M.; Wiedermann, N.; Eckert, C.

:

Maltabarow, G. ; Institute of Electrical and Electronics Engineers -IEEE-:
IEEE International Conference on Smart Grid Communications, SmartGridComm 2016 : Took place 6-9 November 2016 in Sydney, Australia
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-5090-4075-9 (Online)
ISBN: 978-1-5090-4076-6 (Print)
S.266-270
International Conference on Smart Grid Communications (SmartGridComm) <7, 2016, Sydney>
Englisch
Konferenzbeitrag
Fraunhofer AISEC ()

Abstract
Smart Grids are characterized by a high level of interconnectedness and interdependency between their sub-components. As this increases the surface for potential cyber attacks, the control system communication needs to be protected. IEC 61850 is about to become the most prevalent communication standard in the process related parts of Smart Grid control systems, but it was not designed with security in mind. IEC 62351 extends IEC 61850 by comprehensive security measures. By analyzing the IEC 61850 and IEC 62351 specifications, three novel weaknesses in the IEC 62351 standard were discovered which will be presented in this paper. Two weaknesses allow for replay of GOOSE and Sampled Values messages and one weakness in the protocol used for time exchange (SNTP) leaves the system vulnerable to a variety of attacks.

: http://publica.fraunhofer.de/dokumente/N-434911.html