# CVE-2024-0642: Inadequate access control in C21 Live Encoder and Live Mosaic

> Remote attackers can bypass authentication to gain administrator access to C21 Live Encoder and Live Mosaic due to inadequate credential management.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Jan 2024
- **Updated:** 2 Jun 2025
- **Also known as:** GHSA-5237-rpq3-h2pw

## What is CVE-2024-0642?

CVE-2024-0642 is a critical authentication bypass vulnerability in Cires21 C21 Live Encoder and Live Mosaic, published on 17 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Inadequate access control in the C21 Live Encoder and Live Mosaic product, version 5.3. This vulnerability allows a remote attacker to access the application as an administrator user through the application endpoint, due to lack of proper credential management.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2024-0642?

It affects 1 product.


Products: Cires21 Live Encoder.

## How do I fix CVE-2024-0642?

No fix has been published for CVE-2024-0642 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-0642 being exploited?

There is no known exploitation of CVE-2024-0642 in the wild and no public exploit code.

## Other vulnerabilities in Cires21 C21 Live Encoder and Live Mosaic

- [CVE-2024-0643](https://insights.sbomify.com/CVE-2024-0643/): Unrestricted upload of dangerous file types in C21 Live Encoder and Live Mosaic (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-0642 and fix it if it is affected.

What it is: CVE-2024-0642 is a critical authentication bypass vulnerability in Cires21 C21 Live Encoder and Live Mosaic, published on 17 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-0642 in the wild and no public exploit code.

Affected product: Cires21 C21 Live Encoder and Live Mosaic. 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-2024-0642/ (Markdown: https://insights.sbomify.com/CVE-2024-0642/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-0642
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-0642
- OSV: https://osv.dev/vulnerability/CVE-2024-0642

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-0642/
Summaries are generated and may contain mistakes; the official description above is the record.