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CVE-2018-4839

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 SIPROTEC 5等都是德国西门子（Siemens）公司的产品。Siemens SIPROTEC 5是一款多功能继电器。Siemens SIPROTEC 4是一款多功能继电器。Siemens SIPROTEC Compact是一款用于工业能源环境提供保护、控制、监视功能的安全设备。 多款Siemens产品中存在加密问题漏洞。攻击者可利用该漏洞重新构建访问授权密码。以下产品和版本受到影响：Siemens DIGSI 4 4.92之前版本；EN100 Ethernet module IEC

AI Predicted 5.3 Difficulty: Hard EPSS 0.58% · P45
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I. Basic Information for CVE-2018-4839

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), Other SIPROTEC 4 relays (All versions), Other SIPROTEC Compact relays (All versions), SIPROTEC 4 7SD80 (All versions < V4.70), SIPROTEC 4 7SJ61 (All versions < V4.96), SIPROTEC 4 7SJ62 (All versions < V4.96), SIPROTEC 4 7SJ64 (All versions < V4.96), SIPROTEC 4 7SJ66 (All versions < V4.30), SIPROTEC Compact 7SJ80 (All versions < V4.77), SIPROTEC Compact 7SK80 (All versions < V4.77). An attacker with local access to the engineering system or in a privileged network position and able to obtain certain network traffic could possibly reconstruct access authorization passwords.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的加密强度
Source: CVE Program / CVE List V5
Vulnerability Title
多款Siemens产品加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIPROTEC 5等都是德国西门子（Siemens）公司的产品。Siemens SIPROTEC 5是一款多功能继电器。Siemens SIPROTEC 4是一款多功能继电器。Siemens SIPROTEC Compact是一款用于工业能源环境提供保护、控制、监视功能的安全设备。 多款Siemens产品中存在加密问题漏洞。攻击者可利用该漏洞重新构建访问授权密码。以下产品和版本受到影响：Siemens DIGSI 4 4.92之前版本；EN100 Ethernet module IEC
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 -
Siemens Other SIPROTEC 4 relays All versions -
Siemens Other SIPROTEC Compact relays All versions -
Siemens SIPROTEC 4 7SD80 All versions < V4.70 -
Siemens SIPROTEC 4 7SJ61 All versions < V4.96 -
Siemens SIPROTEC 4 7SJ62 All versions < V4.96 -
Siemens SIPROTEC 4 7SJ64 All versions < V4.96 -
Siemens SIPROTEC 4 7SJ66 All versions < V4.30 -
Siemens SIPROTEC Compact 7SJ80 All versions < V4.77 -
Siemens SIPROTEC Compact 7SK80 All versions < V4.77 -

II. Public POCs for CVE-2018-4839

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III. Intelligence Information for CVE-2018-4839

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Vendor Advisories for CVE-2018-4839 (1)

IV. Related Vulnerabilities

Same product: DIGSI 4
Same vendor: Siemens
Same weakness: CWE-326

V. Comments for CVE-2018-4839

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