Rockwell Flex IO Classic Buffer Overflow (CVE-2020-6088)

high Tenable OT Security Plugin ID 500417

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An exploitable denial of service vulnerability exists in the ENIP Request Path Network Segment functionality of Allen- Bradley Flex IO 1794-AENT/B 4.003. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability. 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.

Plugin Details

Severity: High

ID: 500417

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 11/30/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2020-6088

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: cpe:/o:rockwellautomation:flex_io_1794-aent%2fb_firmware:4.003

Required KB Items: Tenable.ot/Rockwell

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/4/2021

Vulnerability Publication Date: 2/4/2021

Reference Information

CVE: CVE-2020-6088

CWE: 120

Detections

Analytics