War Dialing Video Conference Systems

DeepSec Conference
2 min readMar 11, 2020

Do you remember the Golden Age of Wardialing? The idea back then was to try calling phone numbers and to see if a computer systems answers. This methods still works, because you can wardial any system with a suitable addressing scheme. VoIP wardialing is a lot easier since you do not need a modem. You just need to send signalling messages. Video conferencing systems are no exception. They have to do signalling, too. Furthermore, participants of a meeting need to join and leave. For joining there must be a process that authenticates participants. Usually you get a conference identification…

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