3G Network Background
3G Security

3G Network Security Attacks

Comprehensive resources on 3G/UMTS network security vulnerabilities, attack methodologies, and exploitation techniques for security professionals.

Pentesting Methodology Interactive Attack Flows

3G Security Attack Resources

3G Pentesting Methodology
Systematic approach to assessing the security of 3G networks, including planning, reconnaissance, vulnerability analysis, exploitation, and reporting.
  • Planning and Reconnaissance
  • Vulnerability Analysis
  • Exploitation Techniques
  • Post-Exploitation Assessment
  • Reporting and Remediation
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3G Attack Vectors
Comprehensive analysis of various attack vectors targeting 3G networks, including air interface, core network, and signaling protocol vulnerabilities.
  • Air Interface Attacks
  • Core Network Attacks
  • Signaling Attacks
  • Authentication Attacks
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3G Exploits
Specific exploits that can be used to compromise 3G networks, including examples of code and techniques used in these exploits.
  • 3G IMSI Catcher Implementation
  • GTP Tunnel Hijacking
  • 3G SS7 MAP Attack
  • USIM Security Exploits
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3G Interactive Attacks Flow
Step-by-step process of interactive attacks on 3G networks, including diagrams and flowcharts to visualize attack sequences.
  • 3G IMSI Catching Attack
  • GTP Attack Chain
  • 3G SS7/Diameter Attack
  • Interactive Attack Simulations
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Understanding 3G Security Architecture

Before diving into attacks, it's essential to understand the 3G security architecture and its components. This knowledge forms the foundation for effective security testing.

3G Security Components

Key Security Components in 3G

  • Authentication

    UMTS AKA (Authentication and Key Agreement) with mutual authentication between network and device.

  • Encryption

    KASUMI block cipher (f8 algorithm) for confidentiality and f9 for integrity protection.

  • Subscriber Identity

    IMSI (permanent identity) and TMSI (temporary identity) with enhanced protection compared to 2G.

  • Signaling Security

    SS7 and Diameter protocols for signaling, with some improvements over 2G but still vulnerable.

  • USIM Security

    Enhanced SIM card (USIM) with improved security features and algorithms.

Learn More About 3G Architecture
3G Security Resources
Essential tools and references

Security Tools

  • • 3G IMSI catchers
  • • GTP analyzers
  • • USIM testing tools
  • • Network scanners

Research Areas

  • • Authentication bypass
  • • Encryption weaknesses
  • • Protocol vulnerabilities
  • • Network impersonation

Related Security Resources

2G Security
Security vulnerabilities in 2G/GSM networks

Explore security vulnerabilities in 2G networks, including authentication, encryption, and SS7 weaknesses.

Explore 2G Security
4G Security
Security vulnerabilities in 4G/LTE networks

Learn about security vulnerabilities in 4G networks, including radio interface, core network, and Diameter protocol weaknesses.

Explore 4G Security
Signaling Attacks
Vulnerabilities in SS7 and Diameter protocols

Discover security vulnerabilities in signaling protocols used across multiple generations of mobile networks.

Explore Signaling Attacks