Detections
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MOXA NPort IAW5000A-I/O Series Improper Restriction of Excessive Authentication Attempts (CVE-2020-25196)

critical Tenable OT Security Plugin ID 501457

Synopsis

The remote OT asset is affected by a vulnerability.

Description

The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower allows SSH/Telnet sessions, which may be vulnerable to brute force attacks to bypass authentication.

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 released an updated firmware version for the NPort IAW5000A-I/O Series and recommends users install this update on all affected systems.

See Also

https://us-cert.cisa.gov/ics/advisories/icsa-20-287-01

Plugin Details

Severity: Critical

ID: 501457

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 3/4/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-25196

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:moxa:nport_iaw5000a-i%2fo_firmware

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 12/23/2020

Vulnerability Publication Date: 12/23/2020

Reference Information

CVE: CVE-2020-25196

CWE: 307