# CVE-2024-28022: Auth bypass in FOXMAN-UN

> Attackers can bypass authentication limits to brute-force credentials and gain unauthorized access to Hitachi Energy UNEM components.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jun 2024
- **Updated:** 20 May 2025
- **Also known as:** GHSA-j8wr-c44c-g9gh

## What is CVE-2024-28022?

CVE-2024-28022 is a medium-severity authentication bypass vulnerability in Hitachi Energy FOXMAN-UN, published on 11 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability exists in the UNEM server / APIGateway that if exploited allows a malicious user to perform an arbitrary number of
authentication attempts using different passwords, and eventually
gain access to other components in the same security realm using
the targeted account.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2024-28022?

It affects 2 products.


Products: Hitachienergy Foxman-Un, Hitachienergy Unem.

## How do I fix CVE-2024-28022?

No fix has been published for CVE-2024-28022 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-28022 being exploited?

There is no known exploitation of CVE-2024-28022 in the wild and no public exploit code.

## Other vulnerabilities in Hitachi Energy FOXMAN-UN

- [CVE-2024-2013](https://insights.sbomify.com/CVE-2024-2013/): Auth bypass in FOXMAN-UN (critical 10.0)
- [CVE-2024-2012](https://insights.sbomify.com/CVE-2024-2012/): Auth bypass in FOXMAN-UN (critical 9.1)
- [CVE-2024-2011](https://insights.sbomify.com/CVE-2024-2011/): Memory corruption in FOXMAN-UN (high 8.6)
- [CVE-2022-3929](https://insights.sbomify.com/CVE-2022-3929/): Communication between the client and server partially using CORBA over TCP/IP (high 8.3)
- [CVE-2024-28020](https://insights.sbomify.com/CVE-2024-28020/): Hardcoded credentials in FOXMAN-UN (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-28022 and fix it if it is affected.

What it is: CVE-2024-28022 is a medium-severity authentication bypass vulnerability in Hitachi Energy FOXMAN-UN, published on 11 Jun 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-2024-28022 in the wild and no public exploit code.

Affected product: Hitachi Energy FOXMAN-UN. 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-2024-28022/ (Markdown: https://insights.sbomify.com/CVE-2024-28022/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-28022
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-28022
- OSV: https://osv.dev/vulnerability/CVE-2024-28022

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-28022/
Summaries are generated and may contain mistakes; the official description above is the record.