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CVE-2019-13450

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.

Published Jul 9, 2019CWE-862EPSS 3.54%

Overview

CVE-2019-13450 is a medium-severity vulnerability. It was published on July 9, 2019 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/109082Refassets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdfRefblog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/Refbugs.chromium.org/p/chromium/issues/detail?id=951540Refmedium.com/%40jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5Refnews.ycombinator.com/item?id=20387298Reftwitter.com/moreati/status/1148548799813640193Reftwitter.com/zoom_us/status/1148710712241295361Refwww.securityfocus.com/bid/109082Refassets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2019-13450?

CVE-2019-13450 is a medium-severity vulnerability. It was published on July 9, 2019 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

How severe is CVE-2019-13450?

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-13450?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-13450?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-13450 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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