Vulnerability · Published Nov 18, 2020 · Assigned by cisco
CVE-2020-3419Cisco Webex Meetings and Cisco Webex Meetings Server Ghost Join Vulnerability
Medium 6.5
In plain English
A medium-severity security flaw in Cisco WebEx Meetings Server from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 82% of all known vulnerabilities).
Official description
A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to join a Webex session without appearing on the participant list. This vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. A successful exploit requires the attacker to have access to join a Webex meeting, including applicable meeting join links and passwords. The attacker could then exploit this vulnerability to join meetings, without appearing in the participant list, while having full access to audio, video, chat, and screen sharing capabilities.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco WebEx Meetings Server | n/a |
Weakness: CWE-913 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
References
- 20201118 Cisco Webex Meetings and Cisco Webex Meetings Server Ghost Join Vulnerability vendor-advisory, x_refsource_CISCO