What is SS7?

The SS7 protocol, also known as Signaling System No. 7, is a set of signaling protocols used in telecommunications networks to enable the exchange of information between network elements. It provides the necessary signaling for call setup, routing, and control in both fixed and mobile networks.

One of the key features of the SS7 protocol is its ability to support advanced signaling capabilities, including the delivery of short messages (SMS), caller ID, call forwarding, and call waiting. It also enables the implementation of more complex services like mobile number portability and mobile banking.

What are SS7 Attacks?

SS7 attacks, also known as Signaling System 7 attacks, are a type of telecommunication security threat that exploit vulnerabilities in the SS7 protocol. The SS7 protocol is a set of signaling protocols used to establish and manage telephone calls and text messages between different networks.

These attacks can have serious implications, as they allow hackers to intercept, manipulate, and redirect telecommunications traffic. This means that attackers can eavesdrop on phone calls, read text messages, and even track the location of targeted individuals.

Types of SS7 Attacks

One common type of SS7 attack is known as a “man-in-the-middle” attack. In this scenario, the attacker intercepts the communication between two parties and can then either passively listen to the conversation or actively manipulate the content of the communication. This can be particularly concerning when it comes to sensitive information, such as banking details or personal conversations.

Another type of SS7 attack is known as a “location tracking” attack. By exploiting vulnerabilities in the SS7 protocol, attackers can track the location of a targeted individual, even without their consent. This can pose a significant threat to personal privacy and security.

SMS Intercept

SMS interception using SS7 involves exploiting weaknesses in the protocol to gain unauthorized access to text messages.

By intercepting the signaling messages sent between network operators, an attacker can redirect SMS messages to their own device or silently intercept and read the contents of the messages.

Call Intercept

When a call is intercepted using SS7, the signaling messages between the calling and receiving parties are intercepted and redirected.

With SS7, call intercept can be performed transparently, without the knowledge of the calling or receiving parties. The intercepted call can be recorded, analyzed, or monitored in real-time, depending on the requirements of the interception request.

SS7 Software Hacking

SS7 software hacking refers to the unauthorized access and manipulation of the Signaling System No. 7 (SS7) protocol, which is used by telecommunication networks worldwide.

This involves attackers gaining unauthorized access to the SS7 network and diverting calls or text messages to their own devices. This can be done by exploiting vulnerabilities in the network infrastructure or by using social engineering techniques to trick network operators into providing access.