Improper Restriction of Excessive Authentication Attempts in BigBlueButton - CVE-2020-29042
Published: November 26, 2020 / Updated: November 30, 2020
Vulnerability identifier: #VU48705
CSH Severity: Low
CVSS v4: 6.3 [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]
CVE-ID: CVE-2020-29042
CWE-ID: CWE-307
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
BigBlueButton
How to mitigate CVE-2020-29042
Install updates from vendor's website.
BigBlueButton - update to 2.2.30