CVE-2021-1311CWE-307

Cisco Webex Meetings and Cisco Webex Meetings Server Host Key Brute Forcing Vulnerability

Medium · published January 13, 2021

CVSS v3.1
5.4
EPSS
1%
Percentile
69.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.01279 · 69.8th percentile
Weakness
CWE-307 · Improper Restriction of Excessive Authentication Attempts
Published
2021-01-13T21:46Z
EPSS history
Timeline
  • 13 JAN 21:46Z
    Cisco Webex Meetings and Cisco Webex Meetings Server Host Key Brute Forcing Vulnerability
    cvelistv5