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CVE-2019-20049

Estado: ModificadaCrítica (9.8)—

An issue was discovered on Alcatel-Lucent OmniVista 4760 devices. A remote unauthenticated attacker can chain a directory traversal (which helps to bypass authentication) with an insecure file upload to achieve Remote Code Execution as SYSTEM. The directory traversal is in the __construct() whereas the insecure file upload is in SetSkinImages().

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)

Al-enterprise — Omnivista 4760

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-20049",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
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          "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"
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  "affected": [
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      "affectedData": [
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          "versions": [
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  "published": "2019-12-27T19:15:12.723",
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      "url": "https://git.lsd.cat/g/omnivista-rce",
      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "NVD-CWE-Other"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on Alcatel-Lucent OmniVista 4760 devices. A remote unauthenticated attacker can chain a directory traversal (which helps to bypass authentication) with an insecure file upload to achieve Remote Code Execution as SYSTEM. The directory traversal is in the __construct() whereas the insecure file upload is in SetSkinImages()."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en los dispositivos Alcatel-Lucent OmniVista versión 4760. Un atacante remoto no autenticado puede encadenar un salto de directorio (que ayuda a omitir la autenticación) con una carga de archivo no segura para lograr una Ejecución de Código Remota como SYSTEM. El salto de directorio está en la función __construct() mientras que la carga no segura del archivo está en la función SetSkinImages()."
    }
  ],
  "lastModified": "2026-06-17T02:29:53.900",
  "configurations": [
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  "sourceIdentifier": "cve@mitre.org"
}