Executive Summary

Informations
Name CVE-2022-41960 First vendor Publication 2022-12-16
Vendor Cve Last vendor Modification 2022-12-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Overall CVSS Score 4.3
Base Score 4.3 Environmental Score 4.3
impact SubScore 1.4 Temporal Score 4.3
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim's userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim's client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-41960

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-345 Insufficient Verification of Data Authenticity

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 15

Sources (Detail)

Source Url
MISC https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-...

Alert History

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Date Informations
2022-12-21 21:27:16
  • Multiple Updates
2022-12-21 00:27:16
  • Multiple Updates
2022-12-17 02:13:19
  • Multiple Updates
2022-12-17 02:12:58
  • Multiple Updates
2022-12-16 17:27:14
  • Multiple Updates
2022-12-16 05:27:14
  • First insertion