# CVE-2024-45273: MB connect line/Helmholz: Weak encryption of configuration file

> An unauthenticated local attacker can decrypt configuration files due to weak encryption, compromising device security.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2024
- **Updated:** 16 Oct 2024
- **Also known as:** GHSA-r597-7j2h-6248

## What is CVE-2024-45273?

CVE-2024-45273 is a high-severity vulnerability in Helmholz REX100, published on 15 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An unauthenticated local attacker can decrypt the devices config file and therefore compromise the device due to a weak implementation of the encryption used.

Weakness: CWE-326 (Inadequate Encryption Strength), CWE-261 (Weak Encoding for Password)

## Which versions are affected by CVE-2024-45273?

It affects 15 products.


Products: Helmholz Myrex24 V2 Virtual Server, Helmholz Rex 100 Firmware, Helmholz Rex 200 Firmware, Helmholz Rex 250 Firmware, Helmholz Rex 300 Firmware, Mbconnectline Mbconnect24, Mbconnectline Mbnet.mini Firmware, Mbconnectline Mbnet.rokey Firmware, Mbconnectline Mbnet Firmware, Mbconnectline Mbnet Hw1 Firmware, Mbconnectline Mbspider Mdh 905 Firmware, Mbconnectline Mbspider Mdh 906 Firmware, Mbconnectline Mbspider Mdh 915 Firmware, Mbconnectline Mbspider Mdh 916 Firmware, Mbconnectline Mymbconnect24.

## How do I fix CVE-2024-45273?

No fix has been published for CVE-2024-45273 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-45273 being exploited?

There is no known exploitation of CVE-2024-45273 in the wild and no public exploit code.

## Other vulnerabilities in Helmholz REX100

- [CVE-2024-45272](https://insights.sbomify.com/CVE-2024-45272/): MB connect line/Helmholz: Generation of weak passwords vulnerability (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-45273 and fix it if it is affected.

What it is: CVE-2024-45273 is a high-severity vulnerability in Helmholz REX100, published on 15 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-45273 in the wild and no public exploit code.

Affected product: Helmholz REX100. 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-2024-45273/ (Markdown: https://insights.sbomify.com/CVE-2024-45273/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-45273
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-45273
- OSV: https://osv.dev/vulnerability/CVE-2024-45273

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-45273/
Summaries are generated and may contain mistakes; the official description above is the record.