5
CVSSv2

CVE-2020-3142

Published: 26/01/2020 Updated: 28/01/2020
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Vulnerability Summary

A vulnerability in Cisco Webex Meetings Suite sites and Cisco Webex Meetings Online sites could allow an unauthenticated, remote attendee to join a password-protected meeting without providing the meeting password. The connection attempt must initiate from a Webex mobile application for either iOS or Android. The vulnerability is due to unintended meeting information exposure in a specific meeting join flow for mobile applications. An unauthorized attendee could exploit this vulnerability by accessing a known meeting ID or meeting URL from the mobile device’s web browser. The browser will then request to launch the device’s Webex mobile application. A successful exploit could allow the unauthorized attendee to join the password-protected meeting. The unauthorized attendee will be visible in the attendee list of the meeting as a mobile attendee. Cisco has applied updates that address this vulnerability and no user action is required. This vulnerability affects Cisco Webex Meetings Suite sites and Cisco Webex Meetings Online sites releases earlier than 39.11.5 and 40.1.3.

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Vendor Advisories

[CVE-2020-3142_su] A vulnerability in Cisco Webex Meetings Suite sites and Cisco Webex Meetings Online sites could allow an unauthenticated, remote attendee to join a password-protected meeting without providing the meeting password The connection attempt must initiate from a Webex mobile application for either iOS or Android The vulnerability is ...

Recent Articles

Cisco Webex Flaw Lets Unauthenticated Users Join Private Online Meetings
Threatpost • Lindsey O'Donnell • 24 Jan 2020

UPDATE
Cisco Systems has fixed a high-severity vulnerability in its popular Webex video conferencing platform, which could let strangers barge in on password-protected meetings – no authentication necessary.
A remote attacker would not need to be authenticated to exploit the flaw, according to Cisco. All an attacker would need is the meeting ID and a Webex mobile application for either iOS or Android.
“An unauthorized attendee could exploit this vulnerability by accessing a...