# CVE-2024-1491: Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function

> Unauthenticated attackers can upload malicious files to overwrite flash memory and execute arbitrary code on Electrolink broadcast transmitters.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Apr 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-xww2-7grc-g9mp

## What is CVE-2024-1491?

CVE-2024-1491 is a high-severity missing authorization vulnerability in Electrolink Compact DAB Transmitter, published on 18 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The devices allow access to an unprotected endpoint that allows MPFS 
file system binary image upload without authentication. The MPFS2 file 
system module provides a light-weight read-only file system that can be 
stored in external EEPROM, external serial flash, or internal flash 
program memory. This file system serves as the basis for the HTTP2 web 
server module, but is also used by the SNMP module and is available to 
other applications that require basic read-only storage capabilities. 
This can be exploited to overwrite the flash program memory that holds 
the web server's main interfaces and execute arbitrary code.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2024-1491?


## How do I fix CVE-2024-1491?

No fix has been published for CVE-2024-1491 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-1491 being exploited?

There is no known exploitation of CVE-2024-1491 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-1491 and fix it if it is affected.

What it is: CVE-2024-1491 is a high-severity missing authorization vulnerability in Electrolink Compact DAB Transmitter, published on 18 Apr 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-2024-1491 in the wild and no public exploit code.

Affected product: Electrolink Compact DAB Transmitter. 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-2024-1491/ (Markdown: https://insights.sbomify.com/CVE-2024-1491/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-1491
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-1491
- OSV: https://osv.dev/vulnerability/CVE-2024-1491

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-1491/
Summaries are generated and may contain mistakes; the official description above is the record.