# CVE-2023-24544: Missing authorization in BS-GSL and BS-GS series

> A network-adjacent attacker can access specific files and alter settings on Buffalo network switches due to improper access control.

- **Severity:** High 8.1 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **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:** 11 Apr 2023
- **Updated:** 11 Feb 2025
- **Also known as:** GHSA-r7xv-7w95-w6c7

## What is CVE-2023-24544?

CVE-2023-24544 is a high-severity missing authorization vulnerability in BUFFALO INC. BS-GSL and BS-GS series, published on 11 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper access control vulnerability in Buffalo network devices allows a network-adjacent attacker to obtain specific files of the product. As a result, the product settings may be altered. The affected products and versions are as follows: BS-GSL2024 firmware Ver. 1.10-0.03 and earlier, BS-GSL2016P firmware Ver. 1.10-0.03 and earlier, BS-GSL2016 firmware Ver. 1.10-0.03 and earlier, BS-GS2008 firmware Ver. 1.0.10.01 and earlier, BS-GS2016 firmware Ver. 1.0.10.01 and earlier, BS-GS2024 firmware Ver. 1.0.10.01 and earlier, BS-GS2048 firmware Ver. 1.0.10.01 and earlier, BS-GS2008P firmware Ver. 1.0.10.01 and earlier, BS-GS2016P firmware Ver. 1.0.10.01 and earlier, and BS-GS2024P firmware Ver. 1.0.10.01 and earlier

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2023-24544?

It affects 12 products.


Products: Buffalo Bs-Gs2008 Firmware, Buffalo Bs-Gs2008p Firmware, Buffalo Bs-Gs2016 Firmware, Buffalo Bs-Gs2016hp Firmware, Buffalo Bs-Gs2016p Firmware, Buffalo Bs-Gs2024 Firmware, Buffalo Bs-Gs2024hp Firmware, Buffalo Bs-Gs2024p Firmware, Buffalo Bs-Gs2048 Firmware, Buffalo Bs-Gsl2016 Firmware, Buffalo Bs-Gsl2016p Firmware, Buffalo Bs-Gsl2024 Firmware.

## How do I fix CVE-2023-24544?

No fix has been published for CVE-2023-24544 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24544 being exploited?

There is no known exploitation of CVE-2023-24544 in the wild and no public exploit code.

## Other vulnerabilities in BUFFALO INC. BS-GSL and BS-GS series

- [CVE-2023-26588](https://insights.sbomify.com/CVE-2023-26588/): Hardcoded credentials in BS-GSL and BS-GS series (high 7.5)
- [CVE-2023-24464](https://insights.sbomify.com/CVE-2023-24464/): Cross-site scripting in BS-GS series (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-24544 and fix it if it is affected.

What it is: CVE-2023-24544 is a high-severity missing authorization vulnerability in BUFFALO INC. BS-GSL and BS-GS series, published on 11 Apr 2023. 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-2023-24544 in the wild and no public exploit code.

Affected product: BUFFALO INC. BS-GSL and BS-GS series. 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-2023-24544/ (Markdown: https://insights.sbomify.com/CVE-2023-24544/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24544
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24544
- OSV: https://osv.dev/vulnerability/CVE-2023-24544

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24544/
Summaries are generated and may contain mistakes; the official description above is the record.