Rockwell (CVE-2020-27253)

high Tenable.ot Plugin ID 500455

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to specifically craft a malicious packet resulting in a denial-of-service condition on the device.

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.

See Also

https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01

Plugin Details

Severity: High

ID: 500455

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 2/7/2022

Risk Information

CVSS Score Source: CVE-2020-27253

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:/a:rockwellautomation:factorytalk_linx

Required KB Items: Tenable.ot/Rockwell

Exploit Ease: No known exploits are available

Patch Publication Date: 11/26/2020

Vulnerability Publication Date: 11/26/2020

Reference Information

CVE: CVE-2020-27253

CWE: 20