Rockwell Automation Select Communication Modules Out-of-Bounds Write (CVE-2023-3595)

critical Tenable OT Security Plugin ID 501226

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability exists in the 1756 EN2* and 1756 EN3* products, it could allow a malicious user to perform remote code execution with persistence on the target system through maliciously crafted CIP messages. This includes the ability to modify, deny, and exfiltrate data passing through the device.

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.

Rockwell Automation has released the following versions to fix these vulnerabilities and can be addressed by performing a standard firmware update. Customers are strongly encouraged to implement the risk mitigations provided below and to the extent possible, to combine these with the security best practices to employ multiple strategies simultaneously.

Plugin Details

Severity: Critical

ID: 501226

Version: 1.10

Type: remote

Family: Tenable.ot

Published: 7/3/2023

Updated: 3/4/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2023-3595

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:rockwellautomation:1756-en2t_series_a_firmware, cpe:/o:rockwellautomation:1756-en2t_series_b_firmware, cpe:/o:rockwellautomation:1756-en2t_series_c_firmware, cpe:/o:rockwellautomation:1756-en2t_series_d_firmware, cpe:/o:rockwellautomation:1756-en2tk_series_a_firmware, cpe:/o:rockwellautomation:1756-en2tk_series_b_firmware, cpe:/o:rockwellautomation:1756-en2tk_series_c_firmware, cpe:/o:rockwellautomation:1756-en2tk_series_d_firmware, cpe:/o:rockwellautomation:1756-en2txt_series_a_firmware, cpe:/o:rockwellautomation:1756-en2txt_series_b_firmware, cpe:/o:rockwellautomation:1756-en2txt_series_c_firmware, cpe:/o:rockwellautomation:1756-en2txt_series_d_firmware, cpe:/o:rockwellautomation:1756-en2tp_series_a_firmware, cpe:/o:rockwellautomation:1756-en2tpk_series_a_firmware, cpe:/o:rockwellautomation:1756-en2tpxt_series_a_firmware, cpe:/o:rockwellautomation:1756-en2tr_series_a_firmware, cpe:/o:rockwellautomation:1756-en2tr_series_b_firmware, cpe:/o:rockwellautomation:1756-en2tr_series_c_firmware, cpe:/o:rockwellautomation:1756-en2trk_series_a_firmware, cpe:/o:rockwellautomation:1756-en2trk_series_b_firmware, cpe:/o:rockwellautomation:1756-en2trk_series_c_firmware, cpe:/o:rockwellautomation:1756-en2trxt_series_a_firmware, cpe:/o:rockwellautomation:1756-en2trxt_series_b_firmware, cpe:/o:rockwellautomation:1756-en2trxt_series_c_firmware, cpe:/o:rockwellautomation:1756-en2f_series_a_firmware, cpe:/o:rockwellautomation:1756-en2f_series_b_firmware, cpe:/o:rockwellautomation:1756-en2f_series_c_firmware, cpe:/o:rockwellautomation:1756-en2fk_series_a_firmware, cpe:/o:rockwellautomation:1756-en2fk_series_b_firmware, cpe:/o:rockwellautomation:1756-en2fk_series_c_firmware, cpe:/o:rockwellautomation:1756-en3tr_series_a_firmware, cpe:/o:rockwellautomation:1756-en3tr_series_b_firmware, cpe:/o:rockwellautomation:1756-en3trk_series_a_firmware, cpe:/o:rockwellautomation:1756-en3trk_series_b_firmware

Required KB Items: Tenable.ot/Rockwell

Exploit Ease: No known exploits are available

Patch Publication Date: 7/1/2023

Vulnerability Publication Date: 7/12/2023

Reference Information

CVE: CVE-2023-3595

CWE: 787

Detections

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