Korenix JetNet Improper Verification of Cryptographic Signature (CVE-2023-5347)

critical Tenable OT Security Plugin ID 504962

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables. This issue affects JetNet devices older than firmware version 2024/01.

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: Critical

ID: 504962

File Name: tenable_ot_korenix_CVE-2023-5347.nasl

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 1/16/2026

Updated: 2/6/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2023-5347

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: cpe:/o:korenix:jetnet_6728g-24p-ac-2dc-us_firmware:1.1, cpe:/o:korenix:jetnet_5728g-24p-ac-2dc-us_firmware:2.1, cpe:/o:korenix:jetnet_6528gf-2ac-us_firmware:1.0, cpe:/o:korenix:jetnet_6828gf-2dc48_firmware:1.0, cpe:/o:korenix:jetnet_7628x-4f-us_firmware:1.0, cpe:/o:korenix:jetnet_4508f-sw_firmware:2.3, cpe:/o:korenix:jetnet_6728g-24p-ac-2dc-eu_firmware:1.1, cpe:/o:korenix:jetnet_6828gf-2dc24_firmware:1.0, cpe:/o:korenix:jetnet_4508if-mw_firmware:1.3, cpe:/o:korenix:jetnet_6910g-m12_hvdc_firmware:1.0, cpe:/o:korenix:jetnet_4508f-s_firmware:2.3, cpe:/o:korenix:jetnet_6628xp-4f-us_firmware:1.1, cpe:/o:korenix:jetnet_4508i-w_firmware:1.3, cpe:/o:korenix:jetnet_6828gf-ac-us_firmware:1.0, cpe:/o:korenix:jetnet_7628x-4f-eu_firmware:1.0, cpe:/o:korenix:jetnet_6528gf-ac-eu_firmware:1.0, cpe:/o:korenix:jetnet_7310g-v2_firmware:1.0, cpe:/o:korenix:jetnet_6828gf-2ac-au_firmware:1.0, cpe:/o:korenix:jetnet_7714g-m12_hvdc_firmware:1.0, cpe:/o:korenix:jetnet_5620g-4c_firmware:1.1, cpe:/o:korenix:jetnet_7628xp-4f-us_firmware:1.1, cpe:/o:korenix:jetnet_6528gf-2dc48_firmware:1.0, cpe:/o:korenix:jetnet_4508if-sw_firmware:1.3, cpe:/o:korenix:jetnet_4508-w_firmware:2.3, cpe:/o:korenix:jetnet_4508if-s_firmware:1.3, cpe:/o:korenix:jetnet_5310g_firmware:2.6, cpe:/o:korenix:jetnet_6828gf-ac-dc24-eu_firmware:1.0, cpe:/o:korenix:jetnet_4508_firmware:2.3, cpe:/o:korenix:jetnet_6528gf-2ac-eu_firmware:1.0, cpe:/o:korenix:jetnet_4508f-m_firmware:2.3, cpe:/o:korenix:jetnet_6828gf-ac-dc24-us_firmware:1.0, cpe:/o:korenix:jetnet_6528gf-2dc24_firmware:1.0, cpe:/o:korenix:jetnet_6528gf-ac-us_firmware:1.0, cpe:/o:korenix:jetnet_7628xp-4f-eu_firmware:1.0, cpe:/o:korenix:jetnet_6828gf-2ac-eu_firmware:1.0, cpe:/o:korenix:jetnet_5612gp-4f_firmware:1.2, cpe:/o:korenix:jetnet_7628xp-4f-us_firmware:1.0, cpe:/o:korenix:jetnet_6628x-4f-eu_firmware:1.0, cpe:/o:korenix:jetnet_4508if-m_firmware:1.3, cpe:/o:korenix:jetnet_4508f-mw_firmware:2.3, cpe:/o:korenix:jetnet_5728g-24p-ac-2dc-eu_firmware:2.1, cpe:/o:korenix:jetnet_7628xp-4f-eu_firmware:1.1, cpe:/o:korenix:jetnet_5612g-4f_firmware:1.2, cpe:/o:korenix:jetnet_6828gf-2ac-us_firmware:1.0

Required KB Items: Tenable.ot/Korenix

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/9/2024

Vulnerability Publication Date: 1/9/2024

Reference Information

CVE: CVE-2023-5347

CWE: 327, 347

Detections

Analytics