Incorrect permission assignment for critical resource in BigBlueButton - CVE-2024-39302
Published: June 27, 2024 / Updated: April 14, 2026
Vulnerability identifier: #VU125909
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-39302
CWE-ID: CWE-732
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Blindside Networks
Affected software:
BigBlueButton
BigBlueButton
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper file permissions in /usr/local/bigbluebutton/core/vendor/bundle/ruby/2.7.0/gems/resque-2.6.0 when accessing files in the directory. A remote attacker can exploit overly elevated file permissions to cause a denial of service.
The issue may be leveraged for privilege escalation and could expose sensitive information on the server.
How to mitigate CVE-2024-39302
Install security update from vendor's website.