CVE-2021-1311 MEDIUM

CVE-2021-1311: Cisco Webex Meetings and Cisco Webex Meetings Server Host Key Brute Forcing Vulnerability

Vendor Cisco
Product Cisco WebEx Meetings Server
Weakness CWE-307 · Brute force
Published January 13, 2021
Last update November 12, 2024

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 13, 2021 CVE published
November 12, 2024 Record updated