SB2020113006 - Multiple vulnerabilities in BigBlueButton plugin for WordPress

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Main Vulnerability Database SB2020113006

SB2020113006 - Multiple vulnerabilities in BigBlueButton plugin for WordPress

Published: November 30, 2020

Security Bulletin ID SB2020113006
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper Restriction of Excessive Authentication Attempts (CVE-ID: CVE-2020-29042)

CWE-ID: CWE-307 - Improper Restriction of Excessive Authentication Attempts

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


The vulnerability allows a remote attacker to gain access to the system.

The vulnerability exists due to the two-factor authentication has no brute-force prevention. A remote attacker can launch a brute-force authentication attack and gain access to the target system.


2) Missing Authorization (CVE-ID: CVE-2020-29043)

CWE-ID: CWE-862 - Missing Authorization

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


The vulnerability allows a remote attacker to bypass security restrictions on the target system. 

The vulnerability exists due to missing authorization in the "account_activations/edit?token=" URI. A remote attacker can create an approved user account associated with an email address that has an arbitrary domain name.


Remediation

Install update from vendor's website.

References