Detections
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Schneider Electric Modicon Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2020-28220)

medium Tenable OT Security Plugin ID 500850

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Modicon M258 Firmware (All versions prior to V5.0.4.11) and SoMachine/SoMachine Motion software (All versions), that could cause a buffer overflow when the length of a file transferred to the webserver is not verified.

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Solution

Refer to the vendor advisory.

See Also

https://www.se.com/ww/en/download/document/SEVD-2020-343-09/

Plugin Details

Severity: Medium

ID: 500850

Version: 1.3

Type: remote

Family: Tenable.ot

Published: 3/1/2023

Updated: 1/24/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.2

Temporal Score: 3.8

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

CVSS Score Source: CVE-2020-28220

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:A/AC:L/PR:H/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:schneider-electric:modicon_m258_series_firmware

Required KB Items: Tenable.ot/Schneider

Exploit Ease: No known exploits are available

Patch Publication Date: 12/11/2020

Vulnerability Publication Date: 12/11/2020

Reference Information

CVE: CVE-2020-28220

CWE: 119