# CVE-2020-9004: Auth bypass in n/a

> Authenticated read-only users can bypass authorization to access the admin panel, enabling root-level command execution via JMX.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-9g39-jgf9-9mxx

## What is CVE-2020-9004?

CVE-2020-9004 is a high-severity authentication bypass vulnerability in n/a, published on 14 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A remote authenticated authorization-bypass vulnerability in Wowza Streaming Engine 4.8.0 and earlier allows any read-only user to issue requests to the administration panel in order to change functionality. For example, a read-only user may activate the Java JMX port in unauthenticated mode and execute OS commands under root privileges. This issue was resolved in Wowza Streaming Engine 4.8.5.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2020-9004?

It affects 1 product.


Products: Wowza Streaming Engine.

## How do I fix CVE-2020-9004?

No fix has been published for CVE-2020-9004 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-9004 being exploited?

There is no known exploitation of CVE-2020-9004 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-7047](https://insights.sbomify.com/CVE-2018-7047/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2024-52052](https://insights.sbomify.com/CVE-2024-52052/): Stream Target Remote Code Execution in Wowza Streaming Engine (critical 9.4)
- [CVE-2018-19365](https://insights.sbomify.com/CVE-2018-19365/): Path traversal in n/a (critical 9.1)
- [CVE-2016-20034](https://insights.sbomify.com/CVE-2016-20034/): Wowza Streaming Engine 4.5.0 Privilege Escalation via user edit (high 8.7)
- [CVE-2024-52053](https://insights.sbomify.com/CVE-2024-52053/): Stored Cross-Site Scripting in Wowza Streaming Engine (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9004 and fix it if it is affected.

What it is: CVE-2020-9004 is a high-severity authentication bypass vulnerability in n/a, published on 14 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-9004 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-2020-9004/ (Markdown: https://insights.sbomify.com/CVE-2020-9004/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9004
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9004
- OSV: https://osv.dev/vulnerability/CVE-2020-9004

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-9004/
Summaries are generated and may contain mistakes; the official description above is the record.