Vulnerability Details : CVE-2019-13450

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.

Published 2019-07-09 06:15:11

Updated 2020-08-24 17:37:01

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2019-13450

Probability of exploitation activity in the next 30 days: 90.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 98 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2019-13450

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:P/I:N/A:N	8.6	2.9	[email protected]
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
6.5	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	2.8	3.6	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2019-13450

CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Assigned by: [email protected] (Primary)

References for CVE-2019-13450

https://bugs.chromium.org/p/chromium/issues/detail?id=951540

Exploit;Third Party Advisory

CVEs referencing this url
http://www.securityfocus.com/bid/109082

Third Party Advisory;VDB Entry
https://twitter.com/zoom_us/status/1148710712241295361

Third Party Advisory

CVEs referencing this url
https://news.ycombinator.com/item?id=20387298

Issue Tracking;Third Party Advisory
https://blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern/

Vendor Advisory

CVEs referencing this url
https://medium.com/@jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5

Third Party Advisory

CVEs referencing this url
https://twitter.com/moreati/status/1148548799813640193

Third Party Advisory
https://assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdf

Vendor Advisory

CVEs referencing this url

Products affected by CVE-2019-13450

Zoom » Zoom » For Mac Os X
Versions up to, including, (<=) 4.4.4
cpe:2.3:a:zoom:zoom:*:*:*:*:*:mac_os_x:*:*
Matching versions
Ringcentral » Ringcentral » Version: 7.0.136380.0312 For Mac Os X
cpe:2.3:a:ringcentral:ringcentral:7.0.136380.0312:*:*:*:*:mac_os_x:*:*
Matching versions