Hotel Broadband Operation System: Improper Neutralization of Special Elements used in a Command
CVE-2025-3983 is a high-severity improper neutralization of special elements used in a command vulnerability in Hotel Broadband Operation System from AMTT, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected Hotel Broadband Operation System versions: 1.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 17.9% chance of exploitation within 30 days, which is in the top 2.77% of all scored CVEs.
EPSS places it among the vulnerabilities most likely to be exploited soon.
What to do
- Check which version of Hotel Broadband Operation System you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| AMTT | Hotel Broadband Operation System | 1.0 | Not stated |
| Amttgroup | Hibos | 1.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 5.1 | Medium | CNA (vuldb.com) |
| CVSS 3.1 | 4.7 | Medium | CNA (vuldb.com) |
| CVSS 3.1 | 7.2 | High | NVD |
| CVSS 2.0 | 5.8 | Medium | CNA (vuldb.com) |
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.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements used in a Command
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
How developers prevent this class of flaw
- If at all possible, use library calls rather than external processes to recreate the desired functionality.
- If possible, ensure that all external commands called from the program are statically created.
- Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.
More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- vuldb.com/?id.306319Third Party Advisory, VDB Entry
- vuldb.com/?submit.556223Third Party Advisory, VDB Entry
Technical write-ups (may include proof of concept)
Other references
- vuldb.com/?ctiid.306319Permissions Required, VDB Entry
Other vulnerabilities in Hotel Broadband Operation System
- 7.2 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 8.8 High severity
- 9.2 Critical severity
- 7.3 High severity
- 9.8 Critical severity
- 7.2 High severity
- 9.8 Critical severity
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