Moxa AWK-3121 Improper Restriction of Operations Within the Bounds of a Memory Buffer (CVE-2018-10703)

high Tenable OT Security Plugin ID 501534

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An issue was discovered on Moxa AWK-3121 1.14 devices. It provides functionality so that an administrator can run scripts on the device to troubleshoot any issues. However, the same functionality allows an attacker to execute commands on the device. The POST parameter iw_serverip is susceptible to buffer overflow. By crafting a packet that contains a string of 480 characters, it is possible for an attacker to execute the attack.

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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Moxa notes this device has reached end of life and has been replaced by model AWK-1131A (see Moxa bulletin). Moxa recommends users apply the latest security patch, which can be obtained by contacting customer service at the following link:

https://www.moxa.com/en/support/support/technical-support

For additional information see the Moxa advisory.

Plugin Details

Severity: High

ID: 501534

Version: 1.5

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: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2018-10703

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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-3121_firmware:1.14

Required KB Items: Tenable.ot/Moxa

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/7/2019

Vulnerability Publication Date: 6/7/2019

Reference Information

CVE: CVE-2018-10703

CWE: 119

ICSA: 19-337-02

Detections

Analytics