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CVE-2021-27471

Estado: ModificadaAlta (8.6)—

The parsing mechanism that processes certain file types does not provide input sanitization for file paths. This may allow an attacker to craft malicious files that, when opened by Rockwell Automation Connected Components Workbench v12.00.00 and prior, can traverse the file system. If successfully exploited, an attacker could overwrite existing files and create additional files with the same permissions of the Connected Components Workbench software. User interaction is required for this exploit to be successful.

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 (1)

Rockwellautomation — Connected Components Workbench

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-27471",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2021-27471",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
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          "version": "2.0.3",
          "timestamp": "2025-04-16T17:30:46.601580Z"
        }
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    "cvssMetricV2": [
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        "cvssData": {
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          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "ics-cert@hq.dhs.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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  "affected": [
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      "source": "ics-cert@hq.dhs.gov",
      "affectedData": [
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          "vendor": "Rockwell Automation",
          "product": "Connected Components Workbench",
          "versions": [
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              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "v12.00.00"
            }
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  ],
  "published": "2022-03-23T20:15:09.037",
  "references": [
    {
      "url": "https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435",
      "tags": [
        "Permissions Required",
        "Vendor Advisory"
      ],
      "source": "ics-cert@hq.dhs.gov"
    },
    {
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01",
      "tags": [
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        "US Government Resource"
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      "source": "ics-cert@hq.dhs.gov"
    },
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      "url": "https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435",
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "ics-cert@hq.dhs.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-22"
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The parsing mechanism that processes certain file types does not provide input sanitization for file paths. This may allow an attacker to craft malicious files that, when opened by Rockwell Automation Connected Components Workbench v12.00.00 and prior, can traverse the file system. If successfully exploited, an attacker could overwrite existing files and create additional files with the same permissions of the Connected Components Workbench software. User interaction is required for this exploit to be successful."
    },
    {
      "lang": "es",
      "value": "El mecanismo de análisis sintáctico que procesa determinados tipos de archivos no proporciona saneo de entrada para las rutas de archivos. Esto puede permitir a un atacante diseñar archivos maliciosos que, cuando son abiertos por Rockwell Automation Connected Components Workbench versiones v12.00.00 y anteriores, pueden atravesar el sistema de archivos. Si es explotado con éxito, un atacante podría sobrescribir los archivos existentes y crear archivos adicionales con los mismos permisos del software Connected Components Workbench. Es requerida una interacción del usuario para que esta explotación tenga éxito"
    }
  ],
  "lastModified": "2026-06-17T03:44:55.723",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "versionEndIncluding": "12.00.00"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov"
}