Privilege escalation in Bigbluebutton

CVE-2024-39302

BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker may be able to exploit the overly elevated file permissions in the `/usr/local/bigbluebutton/core/vendor/bundle/ruby/2.7.0/gems/resque-2.6.0` directory with the goal of privilege escalation, potentially exposing sensitive information on the server. This issue has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.005 (36.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-39302: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Bigbluebutton — versions < 2.6.18, >= 2.7.0, < 2.7.8, >= 2.8.0, < 3.0.0-alpha.7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-39302?
CVE-2024-39302 is a low-severity vulnerability in Bigbluebutton, classified under Improper Privilege Management. CVSS score: 3.7/10. Published 2024-06-28.
How severe is CVE-2024-39302?
Low severity. CVSS v3 base score is 3.7 out of 10.