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CVE-2021-3054

Estado: ModificadaMedia (6.6)—

A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access.

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)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-3054",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 8.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "psirt@paloaltonetworks.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.6,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 0.7
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  "affected": [
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      "source": "psirt@paloaltonetworks.com",
      "affectedData": [
        {
          "vendor": "Palo Alto Networks",
          "product": "PAN-OS",
          "versions": [
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              "changes": [
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                  "status": "unaffected"
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              ],
              "version": "8.1",
              "lessThan": "8.1.20",
              "versionType": "custom"
            },
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              "changes": [
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              "lessThan": "9.0.14",
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            },
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              "changes": [
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                  "status": "unaffected"
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              ],
              "version": "10.0",
              "lessThan": "10.0.7",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "changes": [
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                  "status": "unaffected"
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              "version": "9.1",
              "lessThan": "9.1.11",
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            },
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              "lessThan": "10.1.2",
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  ],
  "published": "2021-09-08T17:15:12.250",
  "references": [
    {
      "url": "https://security.paloaltonetworks.com/CVE-2021-3054",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@paloaltonetworks.com"
    },
    {
      "url": "https://security.paloaltonetworks.com/CVE-2021-3054",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@paloaltonetworks.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de condición de carrera de tiempo de comprobación a tiempo de uso (TOCTOU) en la interfaz web de Palo Alto Networks PAN-OS permite a un administrador autenticado con permiso para cargar plugins ejecutar código arbitrario con privilegios de usuario root. Este problema afecta a: PAN-OS versión 8.1 anteriores a PAN-OS 8.1.20; PAN-OS versión 9.0 anteriores a PAN-OS 9.0.14; PAN-OS versión 9.1 anteriores a PAN-OS 9.1.11; PAN-OS versión 10.0 anteriores a PAN-OS 10.0.7; PAN-OS versión 10.1 anteriores a PAN-OS 10.1.2. Este problema no afecta a Prisma Access"
    }
  ],
  "lastModified": "2026-06-17T04:04:38.710",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "8.1.20",
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  "sourceIdentifier": "psirt@paloaltonetworks.com"
}