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CVE-2018-4840

Quick assessment

Affected
Siemens DIGSI 4
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.

SIEMENS DIGSI 4是美国SIEMENS公司的一个驱动程序。提供设备驱动程序功能。Siemens EN100 Ethernet module是德国Siemens公司的一个以太网模块。 多款Siemens产品中存在访问控制错误漏洞，该漏洞源于程序没有对重要的功能执行身份验证。远程攻击者可利用该漏洞上传已更改的设备配置，覆盖访问授权密码。以下产品和版本受到影响：Siemens DIGSI 4 4.92之前版本，EN100 Ethernet module IEC 61850 variant 4.30之

AI Predicted 9.8 Difficulty: Easy EPSS 1.78% · P77

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2018-4840

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). The device engineering mechanism allows an unauthenticated remote user to upload a modified device configuration overwriting access authorization passwords.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
多款Siemens产品访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SIEMENS DIGSI 4是美国SIEMENS公司的一个驱动程序。提供设备驱动程序功能。Siemens EN100 Ethernet module是德国Siemens公司的一个以太网模块。 多款Siemens产品中存在访问控制错误漏洞，该漏洞源于程序没有对重要的功能执行身份验证。远程攻击者可利用该漏洞上传已更改的设备配置，覆盖访问授权密码。以下产品和版本受到影响：Siemens DIGSI 4 4.92之前版本，EN100 Ethernet module IEC 61850 variant 4.30之
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
Siemens DIGSI 4 All versions < V4.92 -
Siemens EN100 Ethernet module DNP3 variant All versions < V1.05.00 -
Siemens EN100 Ethernet module IEC 104 variant All versions -
Siemens EN100 Ethernet module IEC 61850 variant All versions < V4.30 -
Siemens EN100 Ethernet module Modbus TCP variant All versions -
Siemens EN100 Ethernet module PROFINET IO variant All versions -

II. Public POCs for CVE-2018-4840

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III. Intelligence Information for CVE-2018-4840

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Vendor Advisories for CVE-2018-4840 (1)

IV. Related Vulnerabilities

Same product: DIGSI 4
Same vendor: Siemens
Same weakness: CWE-306

V. Comments for CVE-2018-4840

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