---
cve: "CVE-2016-9366"
severity: "CRITICAL"
cvss: 9.8
epss: "3.1%"
vendor: "n/a"
kev: false
exploited: false
published: "2017-02-13 21:59:02"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-10T18:25:02+02:00"
---

# CVE-2016-9366

> 9.8 CRITICAL

## Beschreibung

An issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions prior to 2.8, NPort 5400 Series versions prior to 3.11, NPort 5600 Series versions prior to 3.7, NPort 5100A Series & NPort P5150A versions prior to 1.3, NPort 5200A Series versions prior to 1.3, NPort 5150AI-M12 Series versions prior to 1.2, NPort 5250AI-M12 Series versions prior to 1.2, NPort 5450AI-M12 Series versions prior to 1.2, NPort 5600-8-DT Series versions prior to 2.4, NPort 5600-8-DTL Series versions prior to 2.4, NPort 6x50 Series versions prior to 1.13.11, NPort IA5450A versions prior to v1.4.  An attacker can freely use brute force to determine parameters needed to bypass authentication.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-307** — Improper Restriction of Excessive Authentication Attempts
  The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.

## Angriffsmuster (CAPEC)

- [CAPEC-16 — Dictionary-based Password Attack](https://capec.mitre.org/data/definitions/16.html) _(Severity: High)_
- [CAPEC-49 — Password Brute Forcing](https://capec.mitre.org/data/definitions/49.html) _(Severity: High)_
- [CAPEC-560 — Use of Known Domain Credentials](https://capec.mitre.org/data/definitions/560.html) _(Severity: High)_
- [CAPEC-565 — Password Spraying](https://capec.mitre.org/data/definitions/565.html) _(Severity: High)_
- [CAPEC-600 — Credential Stuffing](https://capec.mitre.org/data/definitions/600.html) _(Severity: High)_
- [CAPEC-652 — Use of Known Kerberos Credentials](https://capec.mitre.org/data/definitions/652.html) _(Severity: High)_
- [CAPEC-653 — Use of Known Operating System Credentials](https://capec.mitre.org/data/definitions/653.html) _(Severity: High)_

## ATT&CK-Techniken

- [T1110.001 — Brute Force:Password Guessing](https://attack.mitre.org/techniques/T1110/001/)
- [T1078 — Valid Accounts](https://attack.mitre.org/techniques/T1078/)
- [T1110.003 — Brute Force:Password Spraying](https://attack.mitre.org/techniques/T1110/003/)
- [T1110.004 — Brute Force:Credential Stuffing](https://attack.mitre.org/techniques/T1110/004/)
- [T1558 — Steal or Forge Kerberos Tickets](https://attack.mitre.org/techniques/T1558/)

## Referenzen

- <https://ics-cert.us-cert.gov/advisories/ICSA-16-336-02>
- <http://www.securityfocus.com/bid/85965>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2016-9366/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_