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CVE-2023-27396

Quick assessment

Affected
OMRON Corporation Multiple OMRON products which implement FINS protocol
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Omron SYSMAC CS/CJ/CP Series是日本欧姆龙（Omron）公司的一系列可编程控制器。 Omron SYSMAC CS/CJ/CP Series 存在安全漏洞，该漏洞源于FINS协议存在明文通信、未定义身份验证等安全问题。以下产品和版本受到影响：SYSMAC CJ 系列 CPU 单元所有版本、SYSMAC CP 系列 CPU 单元所有版本、SYSMAC CS 系列 CPU 单元所有版本、SYSMAC NJ 系列 CPU 单元所有版本、SYSMAC NX102 系列 CPU 单元所有版

AI Predicted 9.8 Difficulty: Easy EPSS 1.39% · P70

Possible ATT&CK Techniques 2 AI

T1043 T1078 · Valid Accounts
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I. Basic Information for CVE-2023-27396

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the contents may be retrieved. When arbitrary FINS messages are injected, any commands may be executed on, or the system information may be retrieved from, the affected device. Affected products and versions are as follows: SYSMAC CS-series CPU Units, all versions, SYSMAC CJ-series CPU Units, all versions, SYSMAC CP-series CPU Units, all versions, SYSMAC NJ-series CPU Units, all versions, SYSMAC NX1P-series CPU Units, all versions, SYSMAC NX102-series CPU Units, all versions, and SYSMAC NX7 Database Connection CPU Units (Ver.1.16 or later)
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Omron SYSMAC CS/CJ/CP Series 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Omron SYSMAC CS/CJ/CP Series是日本欧姆龙（Omron）公司的一系列可编程控制器。 Omron SYSMAC CS/CJ/CP Series 存在安全漏洞，该漏洞源于FINS协议存在明文通信、未定义身份验证等安全问题。以下产品和版本受到影响：SYSMAC CJ 系列 CPU 单元所有版本、SYSMAC CP 系列 CPU 单元所有版本、SYSMAC CS 系列 CPU 单元所有版本、SYSMAC NJ 系列 CPU 单元所有版本、SYSMAC NX102 系列 CPU 单元所有版
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OMRON Corporation Multiple OMRON products which implement FINS protocol SYSMAC CS-series CPU Units all versions, SYSMAC CJ-series CPU Units all versions, SYSMAC CP-series CPU Units all versions, SYSMAC NJ-series CPU Units all versions, SYSMAC NX1P-series CPU Units all versions, SYSMAC NX102-series CPU Units all versions, and -

II. Public POCs for CVE-2023-27396

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III. Intelligence Information for CVE-2023-27396

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Vendor Advisories for CVE-2023-27396 (4)

Other References for CVE-2023-27396 (2)

IV. Related Vulnerabilities

Same vendor: OMRON Corporation

V. Comments for CVE-2023-27396

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