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Moxa IKS, EDS Uncontrolled Resource Consumption (CVE-2019-6559)

medium Tenable OT Security Plugin ID 501584

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Moxa IKS and EDS allow remote authenticated users to cause a denial of service via a specially crafted packet, which may cause the switch to crash.

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 recommends users implement the following measures to mitigate these vulnerabilities.

- Install firmware patch. Patches may be requested from Moxa Customer Service (login required):
- Set EDS series Web configuration as "https only” to reduce predictable session ID concern.

Please see Moxa’s security advisory for more information.

See Also

https://ics-cert.us-cert.gov/advisories/ICSA-19-057-01

Plugin Details

Severity: Medium

ID: 501584

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 8/2/2023

Updated: 3/4/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2019-6559

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:eds-405a_firmware, cpe:/o:moxa:eds-408a_firmware, cpe:/o:moxa:eds-510a_firmware, cpe:/o:moxa:iks-g6824a_firmware

Required KB Items: Tenable.ot/Moxa

Exploit Ease: No known exploits are available

Patch Publication Date: 3/5/2019

Vulnerability Publication Date: 3/5/2019

Reference Information

CVE: CVE-2019-6559

CWE: 400