PT-2020-17084 · Bigbluebutton · Bigbluebutton

Published 2020-11-26 · Updated 2020-11-30 · CVE-2020-29042

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions BigBlueButton versions through 2.2.29

Description An issue was discovered that allows a brute-force attack to occur because an unlimited number of codes can be entered for a meeting that is protected by an access code.

Recommendations For BigBlueButton versions through 2.2.29, update to a version later than 2.2.29 to prevent brute-force attacks on meetings protected by an access code.

Exploit

Fix

Improper Restriction of Excessive Authentication Attempts

Weakness Enumeration

CWE-307

Related Identifiers

CVE-2020-29042

Affected Products

Bigbluebutton

References · 8

• 🔥 https://cxsecurity.com/issue/WLB-2020110210 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-29042 · Security Note
• https://osv.dev/vulnerability/CVE-2020-29042 · Vendor Advisory
• https://github.com/bigbluebutton/bigbluebutton/releases · Note
• https://t.me/cvenotify/6313 · Telegram Post
• https://t.me/cvenotify/6246 · Telegram Post
• https://t.me/cibsecurity/16875 · Telegram Post
• http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html · Note