Modern telecommunication networks are slowly evolving from legacy SS7 signaling environments to IP-based architectures. Telcos are simply racing to improve their infrastructure for a new generation of services. In other words, they are looking to create a basis for IMS-based communication, VoIP (Voice over IP), and cloud-native functions.
To do so, they are relying on SIP and Diameter signaling protocols, which enable a high degree of scaling and flexibility. Unfortunately, despite all the benefits, the introduction of new technology brings a new set of security challenges.
Telcos have to worry about a wide range of threats that can potentially affect their infrastructure. Some of the biggest issues include:
- Signaling-based fraud.
- Robocalling.
- Wangiri attacks.
- Network signaling overload.
These targeted attacks want to disrupt performance, ruin operators’ reputations, and cause massive financial losses. In this day and age, traditional security measures are no longer suitable as they focus on a single protocol. This is why operators must do everything in their power to introduce network protection that can safeguard multiple protocols simultaneously.
Titan.ium’s Signaling Firewalls (SFW) stands out as one of the best solutions for modern operators. By relying on its multi-protocol protection, operators can neutralize incoming SIP signaling threats.
The Growing Security Risks Around SIP Signaling
As telecommunication technology slowly shifts toward IP-based architecture, operators must focus on SIP signaling solutions. This critical component enables smooth, reliable communication within a network and with other local and international networks. These are some of the biggest risks pertaining to SIP signaling.
Transition to IP-based signaling
Without SIP, modern telecommunication businesses couldn’t introduce IMS calling, VoIP, multimedia messaging, and other advanced applications. As such, SIP technology is not only important for modernization but also for meeting the clients’ growing demands.
Unfortunately, the same advantages that make SIP so versatile are also the reasons that increase the network’s exposure to outside threats. Specifically, for SIP to be effective, it relies on a high degree of interconnectivity. While this improves overall accessibility, it also increases the attack surface for malicious actors to exploit. Hackers can manipulate signaling messages, spam networks with fake traffic, and take advantage of poorly-designed validation mechanisms.
Common SIP security threats
In recent years, a few particular types of attacks have become more and more common:
- Signaling-Derived Fraud Schemes: Attackers use this tactic to manipulate billing and call routing to make money.
- Robocalling Campaigns: As the name implies, robocalling involves an enormous number of automated calls that would overwhelm networks and cause reputation damage for operators.
- Wangiri Fraud Attacks: This particular attack takes advantage of signaling pathways to call subscribers from unknown numbers. Once telecom users start calling these numbers back, they will be charged with premium fees.
- Signaling Storms and Traffic Flooding: Attackers can generate a large quantity of SIP signaling messages to deteriorate service quality and overload network elements.
- Message Manipulation and Spoofing: These exploits change signaling data so that attackers can bypass the network’s security
The Telecom Challenge
The biggest challenge operators face is maintaining the same quality of service while ensuring compatibility with various legacy components. Telecoms often use SS7 for interconnection with older networks and Diameter for LTE signaling functions. Because of that, modern network protection systems must offer enhanced visibility and enforcement across several protocols.
As an operator, you must consider solutions such as Titan.ium’s Signaling Firewall. With our technology, you can safely introduce SIP firewall capabilities, helping you avoid numerous threats that may negatively affect your network.
Titan.ium Signaling Firewall: A Multi-Protocol Signaling Security Platform
Titanium’s SFW is tailor-made for telecommunications networks that want to minimize signaling threats across several protocols. Our solution serves as a single, comprehensive platform that provides users with centralized control and monitoring. With our product, telcos can avoid deploying separate security measures and instead enjoy full protection for network traffic.
Our firewall fulfils the role of signaling traffic inspection and stateful monitoring. This makes it vital for telcos that want to track sessions in real time and detect suspicious behavioral patterns. By maintaining full visibility, Titan.ium can easily identify abnormal patterns, which are often an indication of fraud attempts.
Protocols Supported
The reason why Titan.ium SFW is so effective is because it allows telecommunication companies to safeguard several protocols simultaneously. The solution can defend any network that combines different signaling technologies, including:
- SS7: Essential component of legacy circuit-switched network signaling.
- Diameter: Supports 4G and LTE signaling environments.
- SIP: The main protocol for modern IP communications.
Each protocol fulfils a unique role within a telecommunication signaling ecosystem. SS7 remains a vital component for legacy signaling functions and connecting with legacy networks. On the other hand, Diameter offers mobility management, authentication, and policy control for LTE services. Lastly, SIP supports multimedia communication services and IP-based voice.
The great thing about Titan.ium’s firewall is that it can correlate signaling activity across these protocols. This makes it vital for identifying threats that exploit complex signaling environments. Our solution can analyze signaling dialogs, detect suspicious behavior, and enforce security policies for complete protection across the entire infrastructure.
New SIP Firewall Capabilities in Titan.ium SFW
Titan.ium has made big changes to its signaling firewall, adding SIP firewall capabilities, ideal for IP-based signaling networks. By leveraging these features, telcos can easily identify malicious SIP traffic, proactively address threats, and enforce comprehensive security policies.
Deep SIP message inspection
One of the biggest upgrades comes in the form of deep SIP message inspection. Our solution can now inspect SIP messages at the parameter level, which allows comprehensive content analysis. Titan.ium SFW can assess nested protocol fields and examine attributes to determine whether the data is consistent and valid.
The feature ensures message integrity and plausibility, filtering messages before they can continue through the network. If the platform notices anything suspicious, it can block the message before it reaches critical elements.
Advanced SIP traffic control
Besides message inspection, the platform offers advanced SIP traffic control for companies. Telcos can configure their policies, changing their rules for message barring, message screening, rate limiting, and message modification. By gaining more control over their security processes, operators can easily prevent incoming threats.
Among other things, better policy enforcement allows telcos to prevent malicious signaling, enforce SLAs, and protect network elements from tinkering (in particular, external traffic overload).
Stateful SIP session monitoring
The Titan.ium platform introduces stateful SIP session monitoring that tracks individual dialogue and analyzes relationships between messages across sessions. Comprehensive monitoring enables the system to identify suspicious patterns that may not be as obvious when analyzing separate messages.
This function is vital for businesses, given that most modern signaling attacks exploit multi-protocol interactions. While traditional firewalls can analyze these complex interactions, Titan.ium leverages deep signaling awareness necessary for mitigating outside threats.
Protecting Telecom Networks from Modern Fraud and Abuse
Telecom fraud is the biggest threat to the modern telecommunications industry. As such, solutions such as Titan.ium have made a name for themselves by being able to efficiently mitigate the following threats:
- Wangiri fraud.
- Robocalling attacks.
- Signaling-derived revenue fraud.
Our platform leverages anomaly detection, dynamic rate measurements, and signalign pattern analysis to provide the best possible protection against the modern, multi-protocol threats. It is also worth mentioning that the technology safeguards networks against attacks defined by the GSMA FASG (Fraud and Security Group).
By introducing our product into your workflow, you can protect your subscribers and your revenue. By eliminating any form of abuse that would drain your resources, you will improve your reputation among clients and other stakeholders.
Flexible Deployment in Carrier Networks
The platform ensures flexible deployment, making sure that businesses can integrate new security measures without disrupting core infrastructure. Because of that, Titan.ium SFW is vital for maintaining operational stability. Our product supports several deployment models, allowing telcos to choose the best configuration according to their requirements and topology.
The platform supports the following deployments:
- Overlay Firewall: Monitors and controls selected signaling traffic, while introducing minimal network disruption. An overlay firewall also enables quick deployment within existing environments.
- Inline Firewalls Deployment: It is positioned in front of or behind the nodes. The solution provides comprehensive protection against threats and inspects signaling flows in real time.
- Integrated Deployment: Deployed alongside other Titan.ium elements such as STP and DSC.
By relying on these flexible options, telcos can introduce custom-made security measures suitable for their network architecture. This allows implementation of robust protection without affecting current operations.
Integration with the Titan.ium Signaling Ecosystem
Our product integrates with the broader Titan.ium signaling architecture, which operates on a carrier-grade platform alongside other components. The robust, integrated solution offers a high level of visibility, routing, and security within a unified environment. Operators can leverage our technology to enjoy the following benefits:
- Dynamic service chaining.
- Shared signaling visibility.
- Unified signaling, routing, and security.
Together with unified signaling routing and security, the SFW operates alongside other elements such as DSC, STP, and SIP routing components. The combination of different Titan.ium elements ensure a fully integrated signaling security and routing ecosystem tailor-made for scaling, reliability, and control.
Future-Proof Signaling Security for Evolving Networks
Given the fast pace of technological innovation, operators must introduce adaptable security systems to future-proof their operations. Titan.ium SFW addresses these challenges by offering users a highly configurable rule-based security model. Businesses can use our product to fine-tune their policies according to long-term goals and requirements.
Besides allowing telcos to quickly adapt to emerging threats, Titan.ium introduces protection mechanisms that don’t necessitate hardware changes. As a result, your firewall can evolve alongside the network, ensuring seamless adoption of future technologies.
Titan.ium system analyzes signaling activity across multiple protocols, ensuring long-term protection. It allows safe and fast transition from legacy SS7 environments to modern IP-based communication architectures.
Conclusion
Over time, more and more companies are adopting SIP technology in their workflows. Unfortunately, despite all the advantages, IP-based signaling introduces new security risks. To protect themselves against the biggest threats, telcos must introduce flexible multi-protocol security.
With Titan.ium, telecommunication companies can enjoy the following benefits:
- Deep signaling inspection
- Fraud protection.
- Flexible deployment.
- Integration with Titan.ium signaling ecosystem.
A combination of these capabilities allows telcos to enjoy a carrier-grade SIP firewall that future-proofs networks against ever-evolving threats. This makes our product ideal for shifting to modern IP-based architectures.
Contact our team today to learn more about the product and how it can help your business.