Moxa AWK-3131A Series Industrial AP/Bridge/Client Buffer Copy Without Checking Size of Input (CVE-2019-5143)

high Tenable OT Security Plugin ID 501495

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An exploitable format string vulnerability exists in the iw_console conio_writestr functionality of the Moxa AWK-3131A firmware version 1.13. A specially crafted time server entry can cause an overflow of the time server buffer, resulting in remote code execution. An attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.

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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 created a security patch to mitigate these vulnerabilities. Please contact Moxa technical support to obtain it.
For additional information see the Moxa advisory.

Plugin Details

Severity: High

ID: 501495

Version: 1.7

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: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

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

CVSS Score Source: CVE-2019-5143

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/o:moxa:awk-3131a_firmware:1.13

Required KB Items: Tenable.ot/Moxa

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/25/2020

Vulnerability Publication Date: 2/25/2020

Reference Information

CVE: CVE-2019-5143

CWE: 134

ICSA: 20-063-04

Detections

Analytics