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CVE-2018-4858

Estado: ModificadaAlta (7.8)—

A vulnerability has been identified in IEC 61850 system configurator (All versions < V5.80), DIGSI 5 (affected as IEC 61850 system configurator is incorporated) (All versions < V7.80), DIGSI 4 (All versions < V4.93), SICAM PAS/PQS (All versions < V8.11), SICAM PQ Analyzer (All versions < V3.11), SICAM SCC (All versions < V9.02 HF3).

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A service of the affected products listening on all of the host's network interfaces on either port 4884/TCP, 5885/TCP, or port 5886/TCP could allow an attacker to either exfiltrate limited data from the system or to execute code with Microsoft Windows user permissions. Successful exploitation requires an attacker to be able to send a specially crafted network request to the vulnerable service and a user interacting with the service's client application on the host. In order to execute arbitrary code with Microsoft Windows user permissions, an attacker must be able to plant the code in advance on the host by other means. The vulnerability has limited impact to confidentiality and integrity of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens confirms the security vulnerability and provides mitigations to resolve the security issue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (6)

Siemens — Digsi 4 FirmwareSiemens — Digsi 5 FirmwareSiemens — EC 61850 System Configurator FirmwareSiemens — Sicam Pas/pqsSiemens — Sicam PQ Analyzer FirmwareSiemens — Sicam SCC Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-4858",
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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        "obtainOtherPrivilege": false,
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          "version": "3.1",
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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        "impactScore": 5.9,
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  "affected": [
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      "affectedData": [
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          "vendor": "Siemens AG",
          "product": "IEC 61850 system configurator, DIGSI 5 (affected as IEC 61850 system configurator is incorporated), DIGSI 4, SICAM PAS/PQS, SICAM PQ Analyzer, SICAM SCC",
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  "published": "2018-07-09T19:29:00.407",
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      "tags": [
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  "vulnStatus": "Modified",
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      "source": "productcert@siemens.com",
      "description": [
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          "value": "CWE-284"
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      "value": "A vulnerability has been identified in IEC 61850 system configurator (All versions < V5.80), DIGSI 5 (affected as IEC 61850 system configurator is incorporated) (All versions < V7.80), DIGSI 4 (All versions < V4.93), SICAM PAS/PQS (All versions < V8.11), SICAM PQ Analyzer (All versions < V3.11), SICAM SCC (All versions < V9.02 HF3). A service of the affected products listening on all of the host's network interfaces on either port 4884/TCP, 5885/TCP, or port 5886/TCP could allow an attacker to either exfiltrate limited data from the system or to execute code with Microsoft Windows user permissions. Successful exploitation requires an attacker to be able to send a specially crafted network request to the vulnerable service and a user interacting with the service's client application on the host. In order to execute arbitrary code with Microsoft Windows user permissions, an attacker must be able to plant the code in advance on the host by other means. The vulnerability has limited impact to confidentiality and integrity of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens confirms the security vulnerability and provides mitigations to resolve the security issue."
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      "value": "Se ha identificado una vulnerabilidad en IEC 61850 system configurator (todas las versiones anteriores a la V5.80); DIGSI 5, afectado al incorporar IEC 61850 system configurator (todas las versiones anteriores a la V7.80); DIGSI 4 (todas las versiones anteriores a la V4.93); SICAM PAS/PQS (todas las versiones anteriores a la V8.11); SICAM PQ Analyzer (todas las versiones anteriores a la V3.11); y SICAM SCC (todas las versiones anteriores a la V9.02 HF3). Un servicio de los productos afectados que escucha en todas las interfaces de red del host, ya sea en los puertos 4884/TCP, 5885/TCP o 5886/TCP, podría permitir que un atacante filtre información limitada del sistema al exterior, o bien ejecute código con permisos de usuario de Microsoft Windows. Para que la explotación tenga éxito, es necesario que un atacante pueda enviar una petición de red especialmente manipulada al servicio vulnerable y que un usuario interactúe con la aplicación cliente del servicio en el host. Para ejecutar código arbitrario con permisos de usuario de Microsoft Windows, un atacante debe tener la capacidad de colocar código de manera anticipada en el host por oros medios. La vulnerabilidad tiene un impacto limitado en la confidencialidad e integridad del sistema afectad. En el momento de la publicación del aviso, no se conoce ninguna explotación pública de la vulnerabilidad de seguridad. Siemens confirma la vulnerabilidad de seguridad y proporciona mitigaciones para resolver el problema de seguridad."
    }
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  "lastModified": "2026-06-17T01:59:10.887",
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