Diameter Attack Vectors

Comprehensive analysis of attack vectors targeting the Diameter protocol in 4G and 5G networks.

Overview of Diameter Attack Vectors in 4G/5G networks
Attack Surface
Key components vulnerable to Diameter attacks
  • Diameter Interfaces

    S6a, S6d, S13, Gx, Rx, and other Diameter-based interfaces between network elements

  • Diameter Routing Infrastructure

    Diameter Routing Agents (DRAs), Diameter Edge Agents (DEAs), and routing tables

  • Network Elements

    HSS, MME, PCRF, and other core network elements that use Diameter for communication

  • Interconnection Points

    Interconnection points between different operator networks where Diameter signaling is exchanged

Impact Areas
Potential consequences of Diameter attacks
  • Subscriber Privacy

    Unauthorized access to subscriber data, location tracking, and identity theft

  • Network Security

    Compromise of authentication mechanisms, bypass of security controls, and unauthorized access

  • Service Availability

    Disruption of network services, denial of service, and degradation of service quality

  • Financial Impact

    Revenue loss, fraud, regulatory penalties, and increased operational costs

Key Attack Vectors

S6a Interface Information Disclosure
Exploiting the S6a interface to extract subscriber data
High Risk
4G Networks

Attacks targeting the S6a interface between the MME and HSS to extract sensitive subscriber information without proper authorization.

Diameter Command Injection
Injecting malicious commands into Diameter messages
Critical Risk
4G/5G Networks

Manipulation of Diameter protocol messages to inject malicious commands that can compromise network elements, modify subscriber data, or disrupt services.

Diameter Routing Manipulation
Manipulating Diameter routing infrastructure
High Risk
4G/5G Networks

Exploitation of vulnerabilities in Diameter routing infrastructure to redirect, intercept, or modify signaling traffic, potentially leading to service disruption or information disclosure.

Identity Spoofing Attacks
Impersonating legitimate Diameter nodes
High Risk
4G/5G Networks

Impersonation of legitimate Diameter nodes by spoofing node identities, allowing attackers to gain unauthorized access to network resources and sensitive information.

Related Resources

Diameter Protocol Overview

Learn about the Diameter protocol architecture, message formats, and its role in 4G and 5G networks.

Diameter Pentesting Methodology

Explore the methodology for conducting security assessments of Diameter implementations in mobile networks.

Diameter Exploits

Discover specific exploits targeting Diameter protocol vulnerabilities in mobile networks.