CVE-2021-1311

A vulnerability in the reclaim host role feature of Cisco Webex Meetings and Cisco Webex Meetings Server could allow an authenticated, remote attacker to take over the host role during a meeting. This vulnerability is due to a lack of protection against brute forcing of the host key. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Webex Meetings Server site. A successful exploit would require the attacker to have access to join a Webex meeting, including applicable meeting join links and passwords. A successful exploit could allow the attacker to acquire or take over the host role for a meeting.

Score

CVSS 3.1 5.4 Medium

Status

Modified - psirt@cisco.com

Published

2021-01-13

Last modified

2024-11-12

Weaknesses

CWE-307

Affected products

• Cisco Webex Meetings Server (Cisco)
• Webex Meetings (Cisco)
• Webex Meetings Server (Cisco)

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-brutef-hostkey-FWRMxVF