Apple Pushes Automatic Mac Software Update to Remove Vulnerable Zoom Web Server
Earlier this week, a serious vulnerability with the Zoom video conferencing app for macOS was disclosed, with attackers potentially able to hijack users' webcams.
The vulnerability was particularly notable because Zoom had installed a hidden web server on users' computers in order to allow for automatic answering of incoming calls, and that web server was not only the weak point that could be exploited, but it also was not removed upon deletion of the app. As a result, users who had previously deleted Zoom might not even realize they were vulnerable to this potential attack.
After initially defending the decision to install a web server on users' machines to work around changes in Safari 12 that would have required users to click to accept incoming calls, Zoom later backtracked and released a patch to remove the web server from users' computers.
Apple has now taken things one step further and pushed out a silent macOS update that removes the web server, reports TechCrunch. The update is deployed automatically, so users don't have to manually apply it in order for it to take effect.
Although Zoom released a fixed app version on Tuesday, Apple said its actions will protect users both past and present from the undocumented web server vulnerability without affecting or hindering the functionality of the Zoom app itself.
The update will now prompt users if they want to open the app, whereas before it would open automatically.
Zoom told TechCrunch it was "happy to have worked with Apple on testing this update" and that it should resolve all issues with the web server.
In a blog post, Zoom says it will take further action this weekend by automatically having first-time users who select "Always turn off my video" default to having video off for all future meetings. In addition, Zoom will be improving its bug bounty program and security-related issue escalation process.
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