Vulnerability CVE-2020-29042


Published: 2020-11-26   Modified: 2020-11-27

Description:
An issue was discovered in BigBlueButton through 2.2.29. A brute-force attack may occur because an unlimited number of codes can be entered for a meeting that is protected by an access code.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
BigBlueButton Meeting Access Code Brute Force Vulnerability
Seccops
25.11.2020

Type:

CWE-307

(Improper Restriction of Excessive Authentication Attempts)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Bigbluebutton -> Bigbluebutton 

 References:
http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html
https://cxsecurity.com/issue/WLB-2020110210
https://github.com/bigbluebutton/bigbluebutton/releases

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