# CVE-2022-47891: Admin password reset in NetMan 204

> Attackers knowing MAC and serial numbers can reset admin passwords via recovery function, gaining full control of NetMan 204 devices.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:** 3 Oct 2023
- **Updated:** 6 Sep 2024
- **Also known as:** GHSA-2jmg-wxp9-5qfc

## What is CVE-2022-47891?

CVE-2022-47891 is a high-severity vulnerability in Riello UPS Netman-204, published on 3 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

All versions of NetMan 204 allow an attacker that knows the MAC and serial number of the device to reset the administrator password via the legitimate recovery function.

Weakness: CWE-798 (Use of Hard-coded Credentials)

## Which versions are affected by CVE-2022-47891?

It affects 1 product.


Products: Riello-Ups Netman 204 Firmware.

## How do I fix CVE-2022-47891?

No fix has been published for CVE-2022-47891 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-47891 being exploited?

There is no known exploitation of CVE-2022-47891 in the wild and no public exploit code.

## Other vulnerabilities in Riello UPS Netman-204

- [CVE-2024-8878](https://insights.sbomify.com/CVE-2024-8878/): Unauthenticated Password Reset (critical 10.0)
- [CVE-2022-47893](https://insights.sbomify.com/CVE-2022-47893/): NetMan 204 Remote Code Execution (critical 10.0)
- [CVE-2017-6900](https://insights.sbomify.com/CVE-2017-6900/): Command injection in n/a (critical 9.8)
- [CVE-2022-3372](https://insights.sbomify.com/CVE-2022-3372/): Cross-Site Request Forgery (CSRF) in Riello UPS Netman-204 (high 8.8)
- [CVE-2024-8877](https://insights.sbomify.com/CVE-2024-8877/): SQL Injection (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-47891 and fix it if it is affected.

What it is: CVE-2022-47891 is a high-severity vulnerability in Riello UPS Netman-204, published on 3 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-47891 in the wild and no public exploit code.

Affected product: Riello UPS Netman-204. 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-2022-47891/ (Markdown: https://insights.sbomify.com/CVE-2022-47891/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-47891
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-47891
- OSV: https://osv.dev/vulnerability/CVE-2022-47891

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-47891/
Summaries are generated and may contain mistakes; the official description above is the record.