CVE-2019-13450 Information
Share on:Description
In the Zoom Client through 4.4.4 and RingCentral 7.0.136380.0312 on macOS remote attackers can force a user to join a video call with the video camera active. This occurs because any web site can interact with the Zoom web server on localhost port 19421 or 19424. NOTE: a machine remains vulnerable if the Zoom Client was installed in the past and then uninstalled. Blocking exploitation requires additional steps such as the ZDisableVideo preference and/or killing the web server deleting the ~/.zoomus directory and creating a ~/.zoomus plain file.
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Reference
http://www.securityfocus.com/bid/109082 https://assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdf https://blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/ https://bugs.chromium.org/p/chromium/issues/detail?id=951540 https://medium.com/@jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5 https://news.ycombinator.com/item?id=20387298 https://twitter.com/moreati/status/1148548799813640193 https://twitter.com/zoom_us/status/1148710712241295361
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
REQUIRED
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
NONE
Base Score
NONE
Base Severity
6.5