Ghost in the machine: Researchers find Webex vulnerabilities allow hidden visitors
Halloween may have been last month, but IBM researchers revealed Wednesday that they discovered a way ghosts could haunt Cisco Webex meetings. The vulnerabilities in the video conferencing platform — since the subject of a Cisco patch — would permit uninvited guests to join a meeting without showing up on the participant list, stay in a meeting even after the host expels them and gather information about other attendees without joining. Unwelcome guests are often more commonly associated with a Webex competitor, Zoom, which led to the coining of the term “Zoombombing” and Zoom wrestling with the problem. But the IBM research shows that with so many meetings happening online during the pandemic, Zoom isn’t alone. Webex registered a record 324 million users in March, and saw usage grow 451% from mid-February to mid-June. IBM Research found that invaders could exploit the “handshake” process whereby Webex connects meeting participants. “A malicious actor […]
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