# CVE-2020-28331: Missing authorization in n/a

> Attackers can enable the disabled SSH daemon via a hidden POST parameter, gaining unauthorized remote access to the device.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Nov 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-x6px-569j-4j5q

## What is CVE-2020-28331?

CVE-2020-28331 is a high-severity missing authorization vulnerability in n/a, published on 24 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Barco wePresent WiPG-1600W devices have Improper Access Control. Affected Version(s): 2.5.1.8. The Barco wePresent WiPG-1600W device has an SSH daemon included in the firmware image. By default, the SSH daemon is disabled and does not start at system boot. The system initialization scripts read a device configuration file variable to see if the SSH daemon should be started. The web interface does not provide a visible capability to alter this configuration file variable. However, a malicious actor can include this variable in a POST such that the SSH daemon will be started when the device boots.

## Which versions are affected by CVE-2020-28331?

It affects 1 product.


Products: Barco Wepresent Wipg-1600w Firmware.

## How do I fix CVE-2020-28331?

No fix has been published for CVE-2020-28331 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-28331 being exploited?

There is no known exploitation of CVE-2020-28331 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-28329](https://insights.sbomify.com/CVE-2020-28329/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2020-28332](https://insights.sbomify.com/CVE-2020-28332/): Other in n/a (critical 9.8)
- [CVE-2020-28333](https://insights.sbomify.com/CVE-2020-28333/): Auth bypass in n/a (critical 9.8)
- [CVE-2020-28334](https://insights.sbomify.com/CVE-2020-28334/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2020-28330](https://insights.sbomify.com/CVE-2020-28330/): Information disclosure in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-28331 and fix it if it is affected.

What it is: CVE-2020-28331 is a high-severity missing authorization vulnerability in n/a, published on 24 Nov 2020. 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-2020-28331 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-2020-28331/ (Markdown: https://insights.sbomify.com/CVE-2020-28331/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-28331
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-28331
- OSV: https://osv.dev/vulnerability/CVE-2020-28331

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-28331/
Summaries are generated and may contain mistakes; the official description above is the record.