Moxa NPort IAW5000A-I/O Series Serial Device Server Improper Input Validation (CVE-2021-32970)

high Tenable OT Security Plugin ID 501496

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Data can be copied without validation in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier, which may allow a remote attacker to cause denial-of-service conditions.

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 developed solutions to address these vulnerabilities. Please contact Moxa Technical Support for a security patch.

Moxa has also published a security advisory to provide more information.

Plugin Details

Severity: High

ID: 501496

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 9/4/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2021-32970

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:moxa:nport_iaw5250a-6i%2fo_firmware, cpe:/o:moxa:nport_iaw5150a-6i%2fo_firmware, cpe:/o:moxa:nport_iaw5150a-12i%2fo_firmware, cpe:/o:moxa:nport_iaw5250a-12i%2fo_firmware

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 4/1/2022

Vulnerability Publication Date: 4/1/2022

Reference Information

CVE: CVE-2021-32970

CWE: 20

ICSA: 21-187-01

Detections

Analytics