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CVE-2017-17543

Estado: ModificadaAlta (7.5)—

Users' VPN authentication credentials are unsafely encrypted in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for Mac OSX 5.6.0 and below versions and FortiClient SSLVPN Client for Linux 4.4.2335 and below versions, due to the use of a static encryption key and weak encryption algorithms.

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 (2)

Fortinet — ForticlientFortinet — Forticlient Sslvpn Client

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2017-17543",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2017-17543",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-24T20:10:01.644124Z"
        }
      }
    ],
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
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  },
  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Fortinet, Inc.",
          "product": "FortiClient for Windows",
          "versions": [
            {
              "status": "affected",
              "version": "5.6.0 and below versions"
            }
          ]
        },
        {
          "vendor": "Fortinet, Inc.",
          "product": "FortiClient for Mac OSX",
          "versions": [
            {
              "status": "affected",
              "version": "5.6.0 and below versions"
            }
          ]
        },
        {
          "vendor": "Fortinet, Inc.",
          "product": "FortiClient SSLVPN Client for Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4.2335 and below versions"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-04-26T20:29:00.243",
  "references": [
    {
      "url": "https://fortiguard.com/advisory/FG-IR-17-214",
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://fortiguard.com/advisory/FG-IR-17-214",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Users' VPN authentication credentials are unsafely encrypted in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for Mac OSX 5.6.0 and below versions and FortiClient SSLVPN Client for Linux 4.4.2335 and below versions, due to the use of a static encryption key and weak encryption algorithms."
    },
    {
      "lang": "es",
      "value": "Las credenciales de autenticación de VPN de los usuarios se cifran de manera no segura en Fortinet FortiClient para Windows en versiones 5.6.0 y anteriores, FortiClient para Mac OSX en versiones 5.6.0 y anteriores y FortiClient SSLVPN Client para Linux en versiones 4.4.2335 y anteriores, debido a la uso de una clave de cifrado estático y algoritmos de cifrado débiles."
    }
  ],
  "lastModified": "2026-06-17T01:11:14.240",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndIncluding": "5.6.0"
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  "sourceIdentifier": "psirt@fortinet.com"
}