Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ringcentral | Ringcentral | 7.0.136380.0312 |
| Zoom | Zoom | <= 4.4.4 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/109082Third Party AdvisoryVDB Entry
- https://assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdfVendor Advisory
- https://blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/Vendor Advisory
- https://bugs.chromium.org/p/chromium/issues/detail?id=951540ExploitThird Party Advisory
- https://medium.com/%40jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-a
- https://news.ycombinator.com/item?id=20387298Issue TrackingThird Party Advisory
- https://twitter.com/moreati/status/1148548799813640193Third Party Advisory
- https://twitter.com/zoom_us/status/1148710712241295361Third Party Advisory
- http://www.securityfocus.com/bid/109082Third Party AdvisoryVDB Entry
- https://assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdfVendor Advisory
- https://blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/Vendor Advisory
- https://bugs.chromium.org/p/chromium/issues/detail?id=951540ExploitThird Party Advisory
- https://medium.com/%40jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-a
- https://news.ycombinator.com/item?id=20387298Issue TrackingThird Party Advisory
- https://twitter.com/moreati/status/1148548799813640193Third Party Advisory
FAQ
What is CVE-2019-13450?
CVE-2019-13450 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 int...
How severe is CVE-2019-13450?
CVE-2019-13450 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-13450?
Check the references section above for vendor advisories and patch information. Affected products include: Ringcentral Ringcentral, Zoom Zoom.