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CVE-2026-2331

Estado: Pendiente de análisisCrítica (9.8)—

An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Red sin autenticación (AV:N/PR:N) permite lectura de archivos sensibles, modificación de configuración y ejecución de código Lua arbitrario en AppEngine.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageNetwork SegmentationLimit Access to Resource Over Network

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Dynamicsoft — AppengineAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-2331",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-2331",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-09T20:55:24.319999Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@sick.de",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@sick.de",
      "affectedData": [
        {
          "vendor": "SICK AG",
          "product": "SICK Lector85x",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.0",
              "versionType": "custom",
              "lessThanOrEqual": "2.7.0"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "SICK AG",
          "product": "SICK Lector83x",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.0",
              "versionType": "custom",
              "lessThanOrEqual": "2.7.0"
            }
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-03-06T08:16:27.450",
  "references": [
    {
      "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices",
      "source": "psirt@sick.de"
    },
    {
      "url": "https://www.first.org/cvss/calculator/3.1",
      "source": "psirt@sick.de"
    },
    {
      "url": "https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.json",
      "source": "psirt@sick.de"
    },
    {
      "url": "https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.pdf",
      "source": "psirt@sick.de"
    },
    {
      "url": "https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf",
      "source": "psirt@sick.de"
    },
    {
      "url": "https://www.sick.com/psirt",
      "source": "psirt@sick.de"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@sick.de",
      "description": [
        {
          "lang": "en",
          "value": "CWE-552"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment."
    },
    {
      "lang": "es",
      "value": "Un atacante puede realizar operaciones de lectura y escritura no autenticadas en áreas sensibles del sistema de archivos a través del acceso a archivos de AppEngine sobre HTTP debido a restricciones de acceso inadecuadas. Un directorio crítico del sistema de archivos fue expuesto involuntariamente a través de la función de acceso a archivos basada en HTTP, permitiendo el acceso sin autenticación. Esto incluye archivos de parámetros del dispositivo, permitiendo a un atacante leer y modificar la configuración de la aplicación, incluyendo contraseñas definidas por el cliente. Además, la exposición del directorio de la aplicación personalizada puede permitir la ejecución de código Lua arbitrario dentro del entorno aislado de AppEngine."
    }
  ],
  "lastModified": "2026-06-17T10:30:48.040",
  "sourceIdentifier": "psirt@sick.de"
}