Low severity · published Nov 26, 2020
CVE-2020-29042
An issue was discovered in BigBlueButton through 2.2.29
3.7
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
through 2.2.29 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29042
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-29042
Third Party Advisory
http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html
Exploit
https://cxsecurity.com/issue/WLB-2020110210
Release Notes
https://github.com/bigbluebutton/bigbluebutton/releases
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