Moxa MB3180 Denial of Service (CVE-2021-33824)

high Tenable OT Security Plugin ID 501459

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An issue was discovered on MOXA Mgate MB3180 Version 2.1 Build 18113012. Attackers can use slowhttptest tool to send incomplete HTTP request, which could make server keep waiting for the packet to finish the connection, until its resource exhausted. Then the web server is denial-of-service.

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: High

ID: 501459

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 8/3/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-33824

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:moxa:mgate_mb3180_firmware:2.1:build_18113012

Required KB Items: Tenable.ot/Moxa

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/18/2021

Vulnerability Publication Date: 6/18/2021

Reference Information

CVE: CVE-2021-33824

CWE: 400

Detections

Analytics