# CVE-2020-27613: Hardcoded credentials in n/a

> Local attackers can exploit hardcoded FreeSWITCH credentials to gain unauthorized access and escalate privileges within BigBlueButton installations.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6h86-pp56-mp6m

## What is CVE-2020-27613?

CVE-2020-27613 is a high-severity vulnerability in n/a, published on 21 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The installation procedure in BigBlueButton before 2.2.28 (or earlier) uses ClueCon as the FreeSWITCH password, which allows local users to achieve unintended FreeSWITCH access.

Weakness: CWE-312 (Cleartext Storage of Sensitive Information)

## Which versions are affected by CVE-2020-27613?

It affects 1 product.


Products: Bigbluebutton Bigbluebutton.

## How do I fix CVE-2020-27613?

No fix has been published for CVE-2020-27613 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-27613 being exploited?

There is no known exploitation of CVE-2020-27613 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-27602](https://insights.sbomify.com/CVE-2020-27602/): Other in n/a (critical 9.8)
- [CVE-2020-27605](https://insights.sbomify.com/CVE-2020-27605/): Code injection in n/a (critical 9.8)
- [CVE-2020-12443](https://insights.sbomify.com/CVE-2020-12443/): Path traversal in n/a (critical 9.8)
- [CVE-2021-4143](https://insights.sbomify.com/CVE-2021-4143/): Cross-site Scripting (XSS) - Generic in bigbluebutton/bigbluebutton (high 8.1)
- [CVE-2025-61601](https://insights.sbomify.com/CVE-2025-61601/): BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27613 and fix it if it is affected.

What it is: CVE-2020-27613 is a high-severity vulnerability in n/a, published on 21 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-27613 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-27613/ (Markdown: https://insights.sbomify.com/CVE-2020-27613/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27613
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27613
- OSV: https://osv.dev/vulnerability/CVE-2020-27613

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27613/
Summaries are generated and may contain mistakes; the official description above is the record.