Mitsubishi Electric MELSEC-F Series Authentication Bypass By Capture-Replay (CVE-2023-2846)

critical Tenable OT Security Plugin ID 501598

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC-F Series main modules allows a remote unauthenticated attacker to cancel the password/keyword setting and login to the affected products by sending specially crafted packets.

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.

Mitsubishi Electric recommends customers take the following mitigation measures to minimize the risk of an attacker exploiting this vulnerability:

- Use a firewall or virtual private network (VPN), etc., to prevent unauthorized access when internet access is required.
- Use within a LAN and block access from untrusted networks and hosts through firewalls.
- Restrict physical access to affected products and the LAN they connect.

For specific update instructions and additional details, see the Mitsubishi Electric advisory.

Plugin Details

Severity: Critical

ID: 501598

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 8/7/2023

Updated: 3/4/2024

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

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

CVSS Score Source: CVE-2023-2846

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/o:mitsubishielectric:fx3g-14mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-14mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-14mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3g-14mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-14mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3g-14mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-14mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3g-14mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3g-24mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-20mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3s-20mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-20mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mr%2fes-2ad_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mt%2fes-2ad_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mt%2fess-2ad_firmware:-, cpe:/o:mitsubishielectric:fx3s-30mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3sa-10mr-cm_firmware:-, cpe:/o:mitsubishielectric:fx3sa-10mt-cm_firmware:-, cpe:/o:mitsubishielectric:fx3sa-14mr-cm_firmware:-, cpe:/o:mitsubishielectric:fx3sa-14mt-cm_firmware:-, cpe:/o:mitsubishielectric:fx3sa-20mr-cm_firmware:-, cpe:/o:mitsubishielectric:fx3sa-20mt-cm_firmware:-, cpe:/o:mitsubishielectric:fx3sa-30mr-cm_firmware:-, cpe:/o:mitsubishielectric:fx3sa-30mt-cm_firmware:-, cpe:/o:mitsubishielectric:fx3u-128mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-128mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-128mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-128mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-128mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3uc-16mt%2fdss-p4_firmware:-, cpe:/o:mitsubishielectric:fx3uc-16mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3uc-32mt%2fd_firmware:-, cpe:/o:mitsubishielectric:fx3uc-32mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3uc-32mt-lt-2_firmware:-, cpe:/o:mitsubishielectric:fx3uc-32mt-lt_firmware:-, cpe:/o:mitsubishielectric:fx3uc-64mt%2fd_firmware:-, cpe:/o:mitsubishielectric:fx3uc-64mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3uc-96mt%2fd_firmware:-, cpe:/o:mitsubishielectric:fx3uc-96mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3g-40mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3g-60mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3ga-24mr-cm_firmware:-, cpe:/o:mitsubishielectric:fx3ga-24mt-cm_firmware:-, cpe:/o:mitsubishielectric:fx3ga-40mr-cm_firmware:-, cpe:/o:mitsubishielectric:fx3ga-40mt-cm_firmware:-, cpe:/o:mitsubishielectric:fx3ga-60mr-cm_firmware:-, cpe:/o:mitsubishielectric:fx3ga-60mt-cm_firmware:-, cpe:/o:mitsubishielectric:fx3gc-32mt%2fd_firmware:-, cpe:/o:mitsubishielectric:fx3gc-32mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3ge-24mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3ge-24mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3ge-24mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3ge-24mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3ge-24mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3ge-24mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3ge-40mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3ge-40mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3ge-40mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3ge-40mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3ge-40mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3ge-40mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3s-10mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3s-10mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-10mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3s-10mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3s-10mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-10mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3s-14mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3s-14mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-14mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3s-14mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3s-14mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-14mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3s-20mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3s-20mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3s-20mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-16mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mr%2fua1_firmware:-, cpe:/o:mitsubishielectric:fx3u-32ms%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-32mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-48mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mr%2fua1_firmware:-, cpe:/o:mitsubishielectric:fx3u-64ms%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-64mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mr%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mr%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mr%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mt%2fds_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mt%2fdss_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mt%2fes-a_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mt%2fes_firmware:-, cpe:/o:mitsubishielectric:fx3u-80mt%2fess_firmware:-, cpe:/o:mitsubishielectric:fx3uc-16mr%2fd-t_firmware:-, cpe:/o:mitsubishielectric:fx3uc-16mr%2fds-t_firmware:-, cpe:/o:mitsubishielectric:fx3uc-16mt%2fd-p4_firmware:-, cpe:/o:mitsubishielectric:fx3uc-16mt%2fd_firmware:-

Required KB Items: Tenable.ot/Mitsubishi

Exploit Ease: No known exploits are available

Patch Publication Date: 6/30/2023

Vulnerability Publication Date: 6/30/2023

Reference Information

CVE: CVE-2023-2846

CWE: 294

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