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Moxa NPort Improper Restriction of Excessive Authentication Attempts (CVE-2016-9366)

critical Tenable OT Security Plugin ID 501551

Synopsis

The remote OT asset is affected by a vulnerability.

Description

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.

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

Solution

Refer to the vendor advisory.

See Also

http://www.securityfocus.com/bid/85965

https://ics-cert.us-cert.gov/advisories/ICSA-16-336-02

Plugin Details

Severity: Critical

ID: 501551

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 9/4/2024

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-2016-9366

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_5600-8-dtl_series_firmware, cpe:/o:moxa:nport_5150ai-m12_series_firmware, cpe:/o:moxa:nport_6000_series_firmware, cpe:/o:moxa:nport_5130_series_firmware, cpe:/o:moxa:nport_5600_series_firmware, cpe:/o:moxa:nport_5200a_series_firmware, cpe:/o:moxa:nport_5600-8-dt_series_firmware, cpe:/o:moxa:nport_ia5450a_series_firmware, cpe:/o:moxa:nport_6110_series_firmware, cpe:/o:moxa:nport_5250ai-m12_series_firmware, cpe:/o:moxa:nport_p5150a_firmware, cpe:/o:moxa:nport_6100_series_firmware, cpe:/o:moxa:nport_5450ai-m12_series_firmware, cpe:/o:moxa:nport_5100a_series_firmware, cpe:/o:moxa:nport_5200_series_firmware, cpe:/o:moxa:nport_5150_series_firmware, cpe:/o:moxa:nport_5400_series_firmware, cpe:/o:moxa:nport_5110_series_firmware

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 2/13/2017

Vulnerability Publication Date: 2/13/2017

Reference Information

CVE: CVE-2016-9366

CWE: 264

ICSA: 16-336-02