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CVE-2024-8935

Quick assessment

Affected
Schneider Electric Modicon M340 CPU (part numbers BMXP34*)
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.

Schneider Electric Modicon M340是法国施耐德电气（Schneider Electric）公司的一款用于工业过程和基础设施的中程PLC（可编程逻辑控制器）。 Schneider Electric Modicon M340存在安全漏洞，该漏洞源于存在通过欺骗绕过身份验证漏洞，当有效用户建立通信会话时，在控制器和工程工作站之间进行中间人攻击，可能导致拒绝服务以及控制器机密性和完整性的丧失。

CVSS 7.5 · High EPSS 0.50% · P41
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I. Basic Information for CVE-2024-8935

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss of confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the controller and the engineering workstation while a valid user is establishing a communication session. This vulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Schneider Electric Modicon M340 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Schneider Electric Modicon M340是法国施耐德电气（Schneider Electric）公司的一款用于工业过程和基础设施的中程PLC（可编程逻辑控制器）。 Schneider Electric Modicon M340存在安全漏洞，该漏洞源于存在通过欺骗绕过身份验证漏洞，当有效用户建立通信会话时，在控制器和工程工作站之间进行中间人攻击，可能导致拒绝服务以及控制器机密性和完整性的丧失。
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
Schneider Electric Modicon M340 CPU (part numbers BMXP34*) All versions since SV3.60 -
Schneider Electric Modicon MC80 (part numbers BMKC80) All versions -
Schneider Electric Modicon Momentum Unity M1E Processor (171CBU*) All Versions -

II. Public POCs for CVE-2024-8935

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III. Intelligence Information for CVE-2024-8935

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Same Patch Batch · Schneider Electric · 2024-11-13 · 7 CVEs total

CVE-2024-10575 9.8 CRITICAL Schneider Electric EcoStruxure IT Gateway 安全漏洞
CVE-2024-8938 8.1 HIGH Schneider Electric Modicon M340 缓冲区错误漏洞
CVE-2024-8933 7.5 HIGH Schneider Electric Modicon M340 安全漏洞
CVE-2024-9409 7.5 HIGH Schneider Electric多款产品 资源管理错误漏洞
CVE-2024-8937 6.5 MEDIUM Schneider Electric Modicon M340 缓冲区错误漏洞
CVE-2024-8936 6.5 MEDIUM Schneider Electric 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: Modicon M340 CPU (part numbers BMXP34*)
Same vendor: Schneider Electric
Same weakness: CWE-290

V. Comments for CVE-2024-8935

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