製品・ソフトウェアに関する情報
Cisco Webex Meetings および Cisco Webex Meetings Server における過度な認証試行の不適切な制限に関する脆弱性
Title Cisco Webex Meetings および Cisco Webex Meetings Server における過度な認証試行の不適切な制限に関する脆弱性
Summary

Cisco Webex Meetings および Cisco Webex Meetings Server には、過度な認証試行の不適切な制限に関する脆弱性が存在します。

Possible impacts 情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。

Publication Date Jan. 13, 2021, midnight
Registration Date Sept. 30, 2021, 3:29 p.m.
Last Update Sept. 30, 2021, 3:29 p.m.
CVSS3.0 : 警告
Score 5.4
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS2.0 : 警告
Score 5.5
Vector AV:N/AC:L/Au:S/C:N/I:P/A:P
Affected System
シスコシステムズ
Cisco WebEx Meetings 
Cisco WebEx Meetings Server 
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2021年09月30日]
  掲載
Sept. 30, 2021, 3:29 p.m.

NVD Vulnerability Information
CVE-2021-1311
Summary

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.

Publication Date Jan. 14, 2021, 7:15 a.m.
Registration Date Jan. 26, 2021, 10:40 a.m.
Last Update Nov. 21, 2024, 2:44 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
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:-:*:*:*:*:*:*
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: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:3.0:maintenance_release4:*:*:*:*:*:*
cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:* 40.12.0
Related information, measures and tools
Common Vulnerabilities List