Although Diameter is an improvement from SS7, it is subject to the same vulnerabilities and many more. Messages sent over Diameter are prone to man-in-the-middle attacks because they are read at several stages and by several systems. Diameter, like GSM MAP delivers various user-related data called Attribute Value Pairs (AVPs). These can be easily modified or inserted, and therefore, to defend against attacks, all AVPs must be screened and signalling controlled on all messages.
Unified or Independent
Diameter Firewall can be deployed standalone or can be complemented with additional protocols as additional modules of the Unified Signalling Firewall as needed in the future.
The GSMA categorises not only different Diameter messages and interfaces, but also different anomalies of packet networks and levels of filtering. Cellusys Diameter Firewall incorporates all four levels of filtering.
From the first day of deployment, pre-defined rules ensure all known threats are blocked. From here, the rules engine, using advanced matching algorithms, not only detects the threats but also provides valuable intelligence in real time, assisting security teams to actively stop any new undefined threats and identify the source.
New policies can be created and implemented immediately without relying on third parties or software updates. Users have full access to the protocol, and can easily customise the flexible rules engine via the user-friendly web interface to implement broad policies as well as attain fine-grained control.
Signalling Providers and Signalling Hubs
Signalling is your business — at least make it secure. We have provided many Tier 1 signalling hubs with the capability to control and secure their signalling.
Fully compliant with GSMA FS.19
GSMA FS.19 Diameter Interconnect Security was first approved by the GSMA in 2015 and has been updated regularly since then. Version 7.0 was published in May of 2019. It outlines known threats in the context of LTE roaming and SS7 interconnect and recommends countermeasures to detect unwanted and malicious messages and set firewall policies. GSMA guidelines are often the basis for public policy and regulation regarding signalling security.
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The Cellusys Unified Signalling Firewall is a powerful cross-protocol solution for signalling security and SMS monetisation. The firewall is able to mitigate complex threat scenarios through internal correlation across SS7, Diameter, GTP, SIP, and SMPP. Every layer-Every message.