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CVE-2019-1816

Estado: ModificadaAlta (7.8)—

A vulnerability in the log subscription subsystem of the Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to perform command injection and elevate privileges to root. The vulnerability is due to insufficient validation of user-supplied input on the web and command-line interface. An attacker could exploit this vulnerability by authenticating to the affected device and injecting scripting commands in the scope of the log subscription subsystem. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.

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)

Cisco — WEB Security Appliance

CWE

Referencias

JSON original (NVD)

Mostrar
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-11-21T18:58:54.394051Z"
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          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
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          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "type": "Secondary",
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        "cvssData": {
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          "product": "Cisco Web Security Appliance (WSA)",
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              "lessThan": "10.1.4-017",
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  "published": "2019-05-03T17:29:00.937",
  "references": [
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-wsa-privesc",
      "tags": [
        "Vendor Advisory"
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      "source": "psirt@cisco.com"
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-wsa-privesc",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
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          "lang": "en",
          "value": "CWE-20"
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      ]
    },
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  "descriptions": [
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      "value": "A vulnerability in the log subscription subsystem of the Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to perform command injection and elevate privileges to root. The vulnerability is due to insufficient validation of user-supplied input on the web and command-line interface. An attacker could exploit this vulnerability by authenticating to the affected device and injecting scripting commands in the scope of the log subscription subsystem. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root."
    },
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      "lang": "es",
      "value": "Una vulnerabilidad en el subsistema de Subscripción de Registro (log subscription) de Cisco Web Security Appliance (WSA) podría permitir a un atacante local autorizado ejecutar la inyección de comandos y elevar los privilegios a root. La vulnerabilidad es debido a la comprobación insuficiente de la entrada suministrada por el usuario en la web y en la interfaz de línea de comandos. Un atacante podría aprovechar esta vulnerabilidad al identificarse en el dispositivo afectado e inyectar comandos de scripting en el ámbito del subsistema de suscripción de registro. Una operación con éxito  podría permitir al atacante ejecutar comandos arbitrarios en el sistema operativo subyacente y elevar los privilegios a root."
    }
  ],
  "lastModified": "2026-06-17T02:29:22.523",
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