Security Tools

VoLTE Security Testing Tools

Comprehensive collection of tools and frameworks for VoLTE and IMS security assessment, penetration testing, and vulnerability analysis.

VoLTE Security Testing Tools

VoLTE Security Testing Overview

Voice over LTE (VoLTE) security testing requires specialized tools that can analyze the complex interactions between the IMS core, SIP signaling, and RTP media streams. This comprehensive collection covers all aspects of VoLTE security assessment, from protocol analysis to fuzzing and penetration testing.

The tools are categorized based on their primary function, though many offer capabilities that span multiple areas. Each tool includes installation instructions, key features, and usage examples to help security professionals conduct thorough VoLTE security assessments.

SIP Testing

Tools for testing SIP signaling security in VoLTE implementations

RTP Analysis

Tools for analyzing RTP/SRTP media streams in VoLTE calls

IMS Core Testing

Tools for testing IMS core components and interfaces

Fuzzing

Frameworks for fuzzing VoLTE protocols and interfaces

SIP Testing Tools

SIPp
Open Source
Performance testing tool for the SIP protocol with VoLTE extensions

Key Features

  • •Customizable SIP scenario creation for VoLTE testing
  • •RTP echo and PCAP media playback capabilities
  • •TLS and IPv6 support for secure VoLTE testing
  • •Dynamic variable handling for complex test scenarios
  • •CSV data injection for mass testing

Usage Example

# Basic VoLTE registration testsipp -sf volte_register.xml -m 1000 -r 50 -rp 1000 ims.example.com -trace_err
SIPp VoLTE Testing
SIPVicious
Open Source
Suite of security tools for auditing SIP-based VoIP systems including VoLTE

Key Features

  • •SIP server enumeration (svmap)
  • •SIP extension enumeration (svwar)
  • •SIP authentication cracking (svcrack)
  • •SIP call making utility (svcrash)
  • •Customizable for IMS/VoLTE environments

Usage Example

# Scan for SIP services in IMS networksvmap 10.0.0.0/24 -p 5060,5061 --timeout=10# Enumerate SIP extensionssvwar -m REGISTER -e 100-500 p-cscf.ims.example.com
SIPVicious VoLTE Testing
Kamailio
Open Source
Open source SIP server that can be used for VoLTE security testing and simulation

Key Features

  • •Can simulate P-CSCF, I-CSCF, and S-CSCF components
  • •Support for IMS-AKA authentication
  • •TLS and WebSocket support for secure testing
  • •Diameter interface integration
  • •Extensive logging for security analysis

Usage Example

# Start Kamailio with IMS configurationkamailio -f kamailio-ims.cfg -DD -E
Kamailio IMS Testing

RTP/SRTP Analysis Tools

RTPEngine
Open Source
Media proxy for RTP traffic with extensive monitoring capabilities for VoLTE security testing

Key Features

  • •RTP/SRTP interception and analysis
  • •Media transcoding and manipulation
  • •SRTP security analysis
  • •DTLS-SRTP support for WebRTC integration
  • •Detailed logging and packet capture

Usage Example

# Start RTPEngine with recording enabledrtpengine --interface=10.0.0.1 --listen-ng=127.0.0.1:2223 --recording-dir=/var/recordings --recording-method=pcap
RTPEngine VoLTE Testing
Wireshark with VoLTE Analysis
Open Source
Network protocol analyzer with specialized VoLTE and IMS dissectors

Key Features

  • •Deep packet inspection of SIP, RTP, and Diameter protocols
  • •VoLTE call flow analysis
  • •RTP stream analysis and playback
  • •SIP call flow graph visualization
  • •Protocol statistics and anomaly detection

Usage Example

# Capture VoLTE traffic on specific interfacetshark -i eth0 -f "port 5060 or port 5061 or port 3478 or port 4500" -w volte_capture.pcap# Apply SIP display filterwireshark -r volte_capture.pcap -Y "sip"
Wireshark VoLTE Analysis

IMS Core Testing Tools

Open IMS Core
Open Source
Open source implementation of IMS Call Session Control Functions (CSCFs) and HSS

Key Features

  • •Complete IMS core implementation for testing
  • •P-CSCF, I-CSCF, S-CSCF components
  • •HSS with web interface for subscriber management
  • •Diameter interfaces (Cx, Sh)
  • •Perfect for creating controlled VoLTE test environments

Usage Example

# Start the Open IMS Core components./pcscf.sh
./icscf.sh
./scscf.sh
./fhoss.sh
Open IMS Core Testing
Diameter Testing Tools
Open Source
Tools for testing Diameter interfaces in IMS/VoLTE environments

Key Features

  • •Testing of Cx, Sh, Rx, and Gx interfaces
  • •Diameter message generation and manipulation
  • •Authentication vector testing
  • •Policy control testing
  • •Integration with IMS testing frameworks

Usage Example

# Test Cx interface with seagull./seagull -conf cx_client.xml -dico diameter_cx.xml -scen cx_uar_uaa.xml -log cx_test.log
Diameter Testing Tools

Fuzzing Frameworks

Protos SIP Test Suite
Research Tool
Comprehensive SIP protocol fuzzer applicable to VoLTE environments

Key Features

  • •Extensive SIP protocol fuzzing capabilities
  • •Malformed message generation
  • •Boundary condition testing
  • •Adaptable for IMS/VoLTE specific testing
  • •Comprehensive test case library

Usage Example

# Run SIP INVITE fuzzing test casesjava -jar protos-sip.jar -target 10.0.0.1:5060 -suite c07-sip-invite
Protos SIP Fuzzing
Radamsa
Open Source
General-purpose fuzzer that can be adapted for VoLTE protocol testing

Key Features

  • •Mutation-based fuzzing of SIP and RTP
  • •Can be integrated with SIP testing tools
  • •Highly customizable mutation patterns
  • •Supports various input and output methods
  • •Can be used in automated testing pipelines

Usage Example

# Generate 100 mutated SIP INVITE messagescat invite_template.sip | radamsa -n 100 -o "invite_fuzz_%n.sip"# Pipe mutated messages to SIP testing toolcat invite_template.sip | radamsa | nc -u 10.0.0.1 5060
Radamsa Fuzzing

Commercial Solutions

P1 Security IMS/VoLTE Testing Suite
Commercial
Comprehensive VoLTE security assessment platform for telecom operators

Key Features

  • •End-to-end VoLTE security assessment
  • •IMS core security testing
  • •SIP signaling security analysis
  • •Media plane security testing
  • •Comprehensive reporting and remediation guidance

Key Benefits

  • •Professional support and training
  • •Regular updates with new attack vectors
  • •Compliance reporting for regulatory requirements
  • •Integration with existing security tools
P1 Security VoLTE Testing
NETSCOUT IMS/VoLTE Test Solution
Commercial
Enterprise-grade VoLTE testing and monitoring solution

Key Features

  • •Real-time VoLTE service monitoring
  • •Security vulnerability assessment
  • •Protocol conformance testing
  • •Performance and load testing
  • •Advanced analytics and reporting

Key Benefits

  • •Enterprise-grade support
  • •Integration with network management systems
  • •Comprehensive security assessment
  • •Continuous monitoring capabilities
NETSCOUT VoLTE Testing

Installation Guide

SIPp Installation
# Install dependencies
sudo apt-get update
sudo apt-get install -y build-essential libssl-dev libpcap-dev libncurses5-dev libsctp-dev

# Clone SIPp repository
git clone https://github.com/SIPp/sipp.git
cd sipp

# Build SIPp with TLS, SCTP, and PCAP support
./build.sh --with-openssl --with-pcap --with-sctp

# Install
sudo make install
Wireshark Installation
# Install Wireshark
sudo apt-get update
sudo apt-get install -y wireshark

# Allow non-root users to capture packets
sudo usermod -a -G wireshark $USER

# Log out and log back in for group changes to take effect
Open IMS Core Installation
# Install dependencies
sudo apt-get update
sudo apt-get install -y mysql-server libmysqlclient-dev libxml2-dev bison flex ant openjdk-11-jdk

# Clone Open IMS Core repository
git clone https://github.com/Open-IMS/open-ims-core.git
cd open-ims-core

# Follow the installation instructions in the README file
# This typically involves setting up MySQL, building the components, and configuring the system

VoLTE Testing Best Practices

Security Testing Methodology

When conducting VoLTE security assessments, follow these best practices to ensure comprehensive coverage and minimize risks:

  1. Obtain proper authorization before testing any production systems. Always have written permission and a defined scope.
  2. Create isolated test environments whenever possible to prevent service disruption.
  3. Document all testing activities including tools used, configurations, and findings.
  4. Start with passive analysis before moving to active testing to minimize impact.
  5. Gradually increase test intensity to monitor for unexpected behavior.
  6. Maintain communication channels with network operations during testing.
  7. Have a rollback plan in case testing causes unexpected issues.
Common Pitfalls to Avoid
  • •Overlooking signaling interfaces: Don't focus solely on SIP; test all interfaces including Diameter and GTP.
  • •Ignoring media plane security: RTP/SRTP vulnerabilities can be as critical as signaling issues.
  • •Insufficient authentication testing: IMS-AKA and other authentication mechanisms require thorough testing.
  • •Neglecting emergency services: VoLTE emergency calling has unique security considerations.
  • •Underestimating interconnect security: Test security at network boundaries and roaming interfaces.

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