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Interconnection Filtering

In order to mitigate Signaling System 7 (SS7) exploitation, the Communications, Security, Reliability, and Interoperability Council (CSRIC) describes filtering interconnections between network operators to block inappropriate requests [1].

ID: M1014
Version: 1.0
Created: 25 October 2017
Last Modified: 16 April 2025
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Mobile Layer
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Techniques Addressed by Mitigation

Domain ID Name Use
Mobile T1430 Location Tracking

Filtering requests by checking request origin information may provide some defense against spurious operators.[1]

.002 Impersonate SS7 Nodes

Filtering requests by checking request origin information may provide some defense against spurious operators.[2]

References

  1. Communications Security, Reliability, Interoperability Council (CSRIC). (2017, March). Working Group 10 Legacy Systems Risk Reductions Final Report. Retrieved May 24, 2017.
  1. CSRIC-WG1-FinalReport