CVE-2019-13450
MEDIUMRingCentral 7.0.136380.0312 - Unauthenticated Forced Video Call Activation via Localhost Web Server
Title source: llmDescription
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.
References (8)
Core 8
Core References
Various Sources x_refsource_misc
https://medium.com/%40jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5
Vendor Advisory x_refsource_misc
https://assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdf
Issue Tracking, Third Party Advisory x_refsource_misc
https://news.ycombinator.com/item?id=20387298
Vendor Advisory x_refsource_misc
https://blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/
Third Party Advisory x_refsource_misc
https://twitter.com/moreati/status/1148548799813640193
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/109082
Third Party Advisory x_refsource_misc
https://twitter.com/zoom_us/status/1148710712241295361
Exploit, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/chromium/issues/detail?id=951540
Scores
CVSS v3
6.5
EPSS
0.0116
EPSS Percentile
78.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Details
CWE
CWE-862
Status
published
Products (2)
ringcentral/ringcentral
7.0.136380.0312
zoom/zoom
< 4.4.4
Published
Jul 09, 2019
Tracked Since
Feb 18, 2026