Securing VoIP Networks

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