# CVE-2025-3983: AMTT Hotel Broadband Operation System nlog_down.php command injection

> Remote attackers can execute arbitrary commands via the ProtocolType parameter in nlog_down.php of AMTT Hotel Broadband Operation System.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Apr 2025
- **Updated:** 2 May 2025
- **Also known as:** GHSA-42jq-cg85-cj5g

## What is CVE-2025-3983?

CVE-2025-3983 is a medium-severity command injection vulnerability in AMTT Hotel Broadband Operation System, published on 27 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability has been found in AMTT Hotel Broadband Operation System 1.0 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /manager/system/nlog_down.php. The manipulation of the argument ProtocolType leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2025-3983?

It affects 1 product.


Products: Amttgroup Hibos.

## How do I fix CVE-2025-3983?

No fix has been published for CVE-2025-3983 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-3983 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3983 exists.

## Other vulnerabilities in AMTT Hotel Broadband Operation System

- [CVE-2016-15048](https://insights.sbomify.com/CVE-2016-15048/): AMTT HiBOS Command Injection RCE via server_ping.php (critical 10.0)
- [CVE-2024-41476](https://insights.sbomify.com/CVE-2024-41476/): SQL injection in n/a (critical 9.8)
- [CVE-2023-6647](https://insights.sbomify.com/CVE-2023-6647/): AMTT HiBOS sql injection (high 7.3)
- [CVE-2025-12253](https://insights.sbomify.com/CVE-2025-12253/): AMTT Hotel Broadband Operation System get_expiredtime.php sql injection (medium 6.9)
- [CVE-2024-39072](https://insights.sbomify.com/CVE-2024-39072/): SQL injection in n/a (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-3983 and fix it if it is affected.

What it is: CVE-2025-3983 is a medium-severity command injection vulnerability in AMTT Hotel Broadband Operation System, published on 27 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3983 exists.

Affected product: AMTT Hotel Broadband Operation System. 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-2025-3983/ (Markdown: https://insights.sbomify.com/CVE-2025-3983/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-3983
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-3983
- OSV: https://osv.dev/vulnerability/CVE-2025-3983

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-3983/
Summaries are generated and may contain mistakes; the official description above is the record.