CVE-2021-1311

Published on: 01/13/2021 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:28:55 PM UTC

CVE-2021-1311 - advisory for cisco-sa-webex-brutef-hostkey-FWRMxVF

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Certain versions of Webex Meetings from Cisco contain the following vulnerability:

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.

  • CVE-2021-1311 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.
  • The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
  • Affected Vendor/Software: URL Logo Cisco - Cisco WebEx Meetings Server version n/a

CVSS3 Score: 5.4 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW LOW NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE LOW LOW

CVSS2 Score: 5.5 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK LOW SINGLE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE PARTIAL PARTIAL

CVE References

Description Tags Link
Cisco Webex Meetings and Cisco Webex Meetings Server Host Key Brute Forcing Vulnerability Vendor Advisory
tools.cisco.com
text/html
URL Logo CISCO 20210113 Cisco Webex Meetings and Cisco Webex Meetings Server Host Key Brute Forcing Vulnerability

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationCiscoWebex MeetingsAllAllAllAll
ApplicationCiscoWebex MeetingsAllAllAllAll
ApplicationCiscoWebex Meetings ServerAllAllAllAll
ApplicationCiscoWebex Meetings Server3.0-AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release1AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release2AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release3AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release4AllAll
ApplicationCiscoWebex Meetings Server4.0-AllAll
ApplicationCiscoWebex Meetings Server4.0maintenance_release1AllAll
ApplicationCiscoWebex Meetings Server4.0maintenance_release2AllAll
ApplicationCiscoWebex Meetings Server4.0maintenance_release3AllAll
ApplicationCiscoWebex Meetings ServerAllAllAllAll
ApplicationCiscoWebex Meetings Server3.0-AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release1AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release2AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release3AllAll
ApplicationCiscoWebex Meetings Server3.0maintenance_release4AllAll
ApplicationCiscoWebex Meetings Server4.0-AllAll
ApplicationCiscoWebex Meetings Server4.0maintenance_release1AllAll
ApplicationCiscoWebex Meetings Server4.0maintenance_release2AllAll
ApplicationCiscoWebex Meetings Server4.0maintenance_release3AllAll
  • cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release1:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release4:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release3:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release1:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release4:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release1:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release2:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release3:*:*:*:*:*:*:
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