V

vendors , 385
virtual LANs. See VLANs
Virtual Network Computing (VNC), 239240
virus oversubscription effect, 134
viruses, 134, 244245
VLAN hopping , 247
VLAN segmentation, 353
VLAN tagging protocol, 154
VLAN Trunking Protocol (VTP), 156, 247
VLANs (virtual LANs)
ARP spoofing and, 184
circumventing, 154156
DoS and, 413, 425426
eavesdropping attacks and, 120
flooding and, 136
members of, 154
nested, 155
port scanning and, 47
private, 155
SIP systems, 434, 466, 479480
VLT (Virtual LAN Trunk), 154
VNC (Virtual Network Computing), 239240
VNCrack tool, 239
vocoders, 65
voice CAPTCHAs, 502503
Voice over IP. See VoIP
voice phishing, 505516
voice SPAM, 484, 487504
voicemail
Asterisk, 344345, 349
AUDIX, 314
Cisco Unity, 217
SPIT and, 491
VoIP (voice over IP)
automated attendant feature, 16
call quality, 122130
latency, 123
quality measurement appliances, 129130
vulnerabilities, 2
VoIP devices. See devices
VoIP eavesdropping. See eavesdropping attacks
VoIP endpoints, 150
VoIP fuzzing, 369387. See also fuzzing
buffer overflows, 372373
commercial tools for, 384385
countermeasures, 386
disclosing results from, 385
format strings and, 373374
reasons for, 371372
references, 386387
vulnerabilities, 372383
VoIP interception/modification.     See interception attacks
VoIP networks. See networks
VoIP phones. See phones
VoIP security pyramid, 810
VoIP SIP environment, 3031
VoIP vendors, 18, 371
VoIPaudit tool, 71, 73
voipong tool, 158, 162
VoIP/SIP firewalls, 480
vomit tool, 162
VTP (VLAN Trunking Protocol), 156, 247
VTP transparent mode, 247
VxWorks remote debugger, 113116
VxWorks VoIP devices, 113116


Hacking Exposed VoIP. Voice Over IP Security Secrets & Solutions
Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions
ISBN: 0072263644
EAN: 2147483647
Year: 2004
Pages: 158

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