SB2023010413 - Multiple vulnerabilities in BigBlueButton

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Main Vulnerability Database SB2023010413

SB2023010413 - Multiple vulnerabilities in BigBlueButton

Published: January 4, 2023

Security Bulletin ID SB2023010413
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Insufficient verification of data authenticity (CVE-ID: CVE-2022-41961)

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:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient verification of data authenticity. A remote user can register multiple users and join the meeting with one of them.


2) Incorrect authorization (CVE-ID: CVE-2022-41962)

CWE-ID: CWE-863 - Incorrect Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to bypass authorization checks.

The vulnerability exists due to improper access control for setting emoji status. A remote administrator can use the feature of clear status to set any emoji status for other users.


3) Exposure of Resource to Wrong Sphere (CVE-ID: CVE-2022-23488)

CWE-ID: CWE-668 - Exposure of resource to wrong sphere

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper enforcement of moderator-only webcams setting. A remote user can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.

References