# CVE-2021-28914: Weak cryptography in n/a

> The eibPort V3 allows weak passwords despite showing strength, enabling attackers to gain SSH root access via brute force.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Sep 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-6p9j-f6xp-23r3

## What is CVE-2021-28914?

CVE-2021-28914 is a medium-severity vulnerability in n/a, published on 9 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow the user to set a weak password because the strength is shown in configuration tool, but finally not enforced. This is usable and part of an attack chain to gain SSH root access.

Weakness: CWE-521 (Weak Password Requirements)

## Which versions are affected by CVE-2021-28914?

It affects 1 product.


Products: Bab-Technologie Eibport Firmware.

## How do I fix CVE-2021-28914?

No fix has been published for CVE-2021-28914 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-28914 being exploited?

There is no known exploitation of CVE-2021-28914 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-28909](https://insights.sbomify.com/CVE-2021-28909/): Auth bypass in n/a (critical 9.8)
- [CVE-2021-28911](https://insights.sbomify.com/CVE-2021-28911/): Information disclosure in n/a (critical 9.8)
- [CVE-2021-28913](https://insights.sbomify.com/CVE-2021-28913/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2021-28910](https://insights.sbomify.com/CVE-2021-28910/): Server-side request forgery in n/a (high 7.5)
- [CVE-2020-24573](https://insights.sbomify.com/CVE-2020-24573/): BAB TECHNOLOGIE GmbH eibPort V3 prior to 3.8.3 devices allow denial of service (Uncontrolled Resource Consumption) via requests to the lighttpd component. (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-28914 and fix it if it is affected.

What it is: CVE-2021-28914 is a medium-severity vulnerability in n/a, published on 9 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-28914 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-2021-28914/ (Markdown: https://insights.sbomify.com/CVE-2021-28914/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-28914
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-28914
- OSV: https://osv.dev/vulnerability/CVE-2021-28914

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-28914/
Summaries are generated and may contain mistakes; the official description above is the record.