Moxa MGate Authentication Bypass (CVE-2016-5804)

critical Tenable OT Security Plugin ID 501520

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Moxa MGate MB3180 before 1.8, MGate MB3280 before 2.7, MGate MB3480 before 2.6, MGate MB3170 before 2.5, and MGate MB3270 before 2.7 use weak encryption, which allows remote attackers to bypass authentication via a brute-force series of guesses for a parameter value.

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.

Plugin Details

Severity: Critical

ID: 501520

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 12/5/2024

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-2016-5804

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:mgate_mb3280_firmware, cpe:/o:moxa:mgate_mb3270_firmware, cpe:/o:moxa:mgate_mb3180_firmware, cpe:/o:moxa:mgate_mb3170_firmware, cpe:/o:moxa:mgate_mb3480_firmware

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 7/15/2016

Vulnerability Publication Date: 7/15/2016

Reference Information

CVE: CVE-2016-5804

CWE: 326

ICSA: 16-196-02

Detections

Analytics