Moxa NPort W2150A and W2250A Credentials Management (CVE-2017-16727)

critical Tenable OT Security Plugin ID 501427

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A Credentials Management issue was discovered in Moxa NPort W2150A versions prior to 1.11, and NPort W2250A versions prior to 1.11. The default password is empty on the device. An unauthorized user can access the device without a password. An unauthorized user has the ability to completely compromise the confidentiality and integrity of the wireless traffic.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Moxa has produced new firmware Version 2.1 for the affected devices that can be downloaded from:

https://www.moxa.com/support/download.aspx?type=support&id=14781

Plugin Details

Severity: Critical

ID: 501427

Version: 1.11

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 4/21/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2017-16727

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:moxa:nport_w2250a_firmware, cpe:/o:moxa:nport_w2150a_firmware

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 12/22/2017

Vulnerability Publication Date: 12/22/2017

Reference Information

CVE: CVE-2017-16727

CWE: 255, 521

ICSA: 17-355-01

Detections

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