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A specially crafted chat message can cause an arbitrary file write, which could potentially be abused to achieve arbitrary code execution. An attacker needs to send a specially crafted message to a target user or a group to exploit this vulnerability. One of the services offered is chat with users contacts.
Official client applications exist for Windows, macOS and Linux systems. The feature to send code snippets requires installation of an additional plugin, but receiving them does not. This feature is implemented as en extension of file sharing support. The same is the case with regular file sharing through Zoom.
However, in case of a shared code snippet, Zoom will proceed to automatically unpack the downloaded zip file in order to preview and display the snippet.
Additionally, a partial path traversal issue allows the specially crafted zip file to write files outside the intended randomly generated directory. This in itself could potentially be abused in leveraging another vulnerability.
When a regular file is shared with a Zoom client, they need to click on the file and choose a destination to save it before accessing it. Since the Zoom client keeps track of downloaded files, combining this fact with the above described issue can lead to arbitrary file writes to arbitrary paths.
Alert: Hackers are targeting people with malicious Zoom installers. Zoom announced a postponement of the password enforcement deadline from May 30 to a date to be determined.
Read more. Zoom released update: 5. Starting on May 30 this date has been extended, see note : all Zoom sessions using Rice accounts will require passwords.
Starting today: all sessions by individuals with personal Zoom accounts will require passwords. See Zoom blog for more details. Rice updating new default settings , effective May 1. New Zoom release: 5. Rice Thresher: Zoom bombings disrupt online classes. This option is now disabled by default but can be enabled by any user if they would like.
To sign up, go to Zoom Webinar Registration. New Zoom client versions. Secure your Zoom meetings. If you are hosting a meeting, follow recommendations for creating private and secure Zoom sessions. These steps will reduce the possibility of Zoombombing where unwelcome guests disrupt your meeting or webinar. Meetings and Webinars Multi-pin and Multi-spotlight : With host permission, users can pin up to 9 participants on their end.
If neither a meeting waiting room or passcode is enabled for your meetings, starting on September 27, Zoom will enable a waiting room for your meetings. Note: This change was previously scheduled to start on July 19th, but it has been postponed by Zoom. If your meetings are configured so that only authenticated Caltech users can access your meeting, you will still need to enable the waiting room or passcode.
You can select to enable the waiting room, but have authenticated users bypass the waiting room by following these steps. Please note that this is a global setting, once enabled, this will apply to all meetings with a waiting room requiring authenticated users only. Previously scheduled meetings should be updated with a meeting passcode or waiting room. If a passcode is set up for your meeting make sure to update your meeting participants with the passcode.
If a passcode is added to a new meeting, the passcode will be embedded in the meeting link automatically. Learn more about this change, passcodes and waiting rooms. The latest version of Zoom, version 5. Some of the new features are listed below, visit Zoom's page for more details about this update.
Follow the screen sharing instructions to ensure that you are only sharing the intended content during your meeting. The instructions show you how to share only the intended application or window, instead of your entire desktop. After May 30, , all Zoom clients on older versions will be required to upgrade before joining meetings. Up to 49 videos can be simultaneously displayed on screen, as well.
Zoom Meetings and Chat allows several participants to share their screen and comes with multiple security features, such as password protection, encryption, role-based user security, and more.
The meetings can be recorded and stored on your local drive, or uploaded to cloud storage. Windows Mac Linux Mobile.
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