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CVE-2018-13383

Estado: AnalizadaMedia (6.5)⚠ Explotación activa

A heap buffer overflow in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier and FortiProxy 2.0.0, 1.2.8 and earlier in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages.

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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

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

Desbordamiento de búfer en portal SSL VPN requiere interacción del usuario (UI:R) para enviar datos malformados en href; causa denegación de servicio (termination del servicio web) explotable remotamente.

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

Filter Network TrafficApplication Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (2)

Fortinet — FortiosFortinet — Fortiproxy

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-13383",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2018-13383",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "active"
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            {
              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-10-23T13:33:02.861324Z"
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          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
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          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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        "userInteractionRequired": true
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    ],
    "cvssMetricV31": [
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        "type": "Secondary",
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        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
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          "confidentialityImpact": "NONE"
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          "userInteraction": "REQUIRED",
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  },
  "affected": [
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      "affectedData": [
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          "vendor": "Fortinet",
          "product": "Fortinet FortiOS and FortiProxy",
          "versions": [
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              "version": "FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier, FortiProxy 2.0.0, 1.2.8 and earlier"
            }
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      ]
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  ],
  "published": "2019-05-29T18:29:00.693",
  "references": [
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      "url": "https://fortiguard.com/advisory/FG-IR-18-388",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://fortiguard.com/advisory/FG-IR-20-229",
      "tags": [
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      "source": "psirt@fortinet.com"
    },
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      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-13383",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
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    {
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      "lang": "en",
      "value": "A heap buffer overflow in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier and FortiProxy 2.0.0, 1.2.8 and earlier in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages."
    },
    {
      "lang": "es",
      "value": "Un desbordamiento del búfer de la pila en Fortinet FortiOS versión 6.0.0 hasta 6.0.4, versión 5.6.0 hasta 5.6.10, versión 5.4.0 hasta 5.4.12, versión 5.2.14 y anteriores y FortiProxy versión 2.0.0, versión 1.2.8 y anteriores en el portal web de SSL VPN puede provocar la finalización del servicio web de SSL VPN para los usuarios registrados debido a un fallo en el manejo de los datos href de javascript al proxiar las páginas web"
    }
  ],
  "lastModified": "2026-06-17T01:39:18.710",
  "cisaActionDue": "2022-07-10",
  "cisaExploitAdd": "2022-01-10",
  "configurations": [
    {
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        {
          "negate": false,
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              "vulnerable": true,
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              "versionEndExcluding": "1.2.9"
            },
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  "sourceIdentifier": "psirt@fortinet.com",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Fortinet FortiOS and FortiProxy Out-of-bounds Write"
}