SB2023010412 - Insufficient verification of data authenticity in BigBlueButton
Published: January 4, 2023
Security Bulletin ID
SB2023010412
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2022-41960)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to disconnect other users.
The vulnerability exists due to insufficient verification of data authenticity. A remote user can initiate a Meteor call to `validateAuthToken` using a victim's userId, meetingId, and an invalid authToken, which will result in disconnecting the victim user from the current conference.
Remediation
Install update from vendor's website.