# CVE-2024-23962: Alpine Halo9 Missing Authentication

> Remote attackers can access the DLT interface without authentication to disclose sensitive information and potentially execute arbitrary code on Alpine Halo9 devices.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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:** 30 Jan 2025
- **Updated:** 1 Jul 2025
- **Also known as:** GHSA-4pmj-qpm8-x7gv

## What is CVE-2024-23962?

CVE-2024-23962 is a medium-severity missing authorization vulnerability in Alpine Halo9, published on 30 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Alpine Halo9 devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the DLT interface, which listens on TCP port 3490 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the device.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2024-23962?

It affects 1 product.


Products: Alpsalpine Ilx-F509 Firmware.

## How do I fix CVE-2024-23962?

No fix has been published for CVE-2024-23962 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-23962 being exploited?

There is no known exploitation of CVE-2024-23962 in the wild and no public exploit code.

## Other vulnerabilities in Alpine Halo9

- [CVE-2024-23923](https://insights.sbomify.com/CVE-2024-23923/): Alpine Halo9 prh_l2_sar_data_ind Use-After-Free Remote Code Execution Vulnerability (high 8.8)
- [CVE-2024-23963](https://insights.sbomify.com/CVE-2024-23963/): Alpine Halo9 Stack-based Buffer Overflow (high 8.0)
- [CVE-2024-23935](https://insights.sbomify.com/CVE-2024-23935/): Alpine Halo9 DecodeUTF7 Stack-based Buffer Overflow Remote Code Execution Vulnerability (high 8.0)
- [CVE-2024-23924](https://insights.sbomify.com/CVE-2024-23924/): Alpine Halo9 UPDM_wemCmdCreatSHA256Hash Command Injection Remote Code Execution Vulnerability (medium 6.8)
- [CVE-2024-23961](https://insights.sbomify.com/CVE-2024-23961/): Alpine Halo9 UPDM_wemCmdUpdFSpeDecomp Command Injection Remote Code Execution Vulnerability (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-23962 and fix it if it is affected.

What it is: CVE-2024-23962 is a medium-severity missing authorization vulnerability in Alpine Halo9, published on 30 Jan 2025. 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-2024-23962 in the wild and no public exploit code.

Affected product: Alpine Halo9. 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-2024-23962/ (Markdown: https://insights.sbomify.com/CVE-2024-23962/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-23962
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-23962
- OSV: https://osv.dev/vulnerability/CVE-2024-23962

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-23962/
Summaries are generated and may contain mistakes; the official description above is the record.