Zoom Zero-Day Vulnerability Fix for Mac Homebrew Users

clean_zoom_install.sh

#!/usr/bin/env bash

# Zoom Zero-Day Vulnerability Fix for Mac Homebrew Users
# @bobbyno based on 
# https://medium.com/@jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5

uninstall_zoom() {
  # Use zap to completely uninstall Zoom
  ## Zap docs: https://github.com/Homebrew/homebrew-cask/blob/master/doc/cask_language_reference/stanzas/zap.md
  ## Zoom recipe: https://github.com/Homebrew/homebrew-cask/blob/7b1788d6e20471911094f0f2a857aac8e5c06d81/Casks/zoomus.rb
  brew update
  brew cask zap -f zoomus
}

install_zoom() {
  brew cask install zoomus
}

prevent_vulnerable_server_from_running() {
  pkill "ZoomOpener"; rm -rf ~/.zoomus; touch ~/.zoomus && chmod 000 ~/.zoomus;
  pkill "RingCentralOpener"; rm -rf ~/.ringcentralopener; touch ~/.ringcentralopener && chmod 000 ~/.ringcentralopener;
}

update_privacy_settings() {
  # Ref: https://support.zoom.us/hc/en-us/articles/115001799006-Mass-Deployment-with-Preconfigured-Settings-for-Mac
  defaults write ~/Library/Preferences/us.zoom.xos.plist ZDisableVideo 1
  defaults write ~/Library/Preferences/us.zoom.xos.plist MuteVoipWhenJoin 1
}


uninstall_zoom
install_zoom
prevent_vulnerable_server_from_running
update_privacy_settings