Securing VoIP Networks : Threats, Vulnerabilities, and Countermeasures

InSecuring VoIP Networks, two leading experts systematically review the security risks and vulnerabilities associated with VoIP networks and offer proven, detailed recommendations for securing them.

Drawing on case studies from their own fieldwork, the authors address VoIP security from the perspective of real-world network implementers, managers, and security specialists.

The authors identify key threats to VoIP networks, including eavesdropping, unauthorized access, denial of service, masquerading, and fraud; and review vulnerabilities in protocol design, network architecture, software, and system configuration that place networks at risk.

They discuss the advantages and tradeoffs associated with protection mechanisms built into SIP, SRTP, and other VoIP protocols; and review key management solutions such as MIKEY and ZRTP.

Next, they present a complete security framework for enterprise VoIP networks, and provide detailed architectural guidance for both service providers and enterprise users. 1 Introduction2 VoIP Architectures and Protocols3 Threats and Attacks4 VoIP Vulnerabilites5 Signaling Protection Mechanisms6 Media Protection Mechanisms7 Key Management Mechanisms8 VoIP and Network Security Controls9 A Security Framework for Enterprise VoIP Networks10 Provider Architectures and Security11 Enterprise Architectures and Security