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FKIE_CVE-2017-17543

Vulnerability from fkie_nvd - Published: 2018-04-26 20:29 - Updated: 2026-06-17 01:11
Severity
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
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.
References
psirt@fortinet.comhttps://fortiguard.com/advisory/FG-IR-17-214
af854a3a-2127-422b-91ae-364da2661108https://fortiguard.com/advisory/FG-IR-17-214
Impacted products
Vendor Product Version
fortinet forticlient *
fortinet forticlient *
fortinet forticlient_sslvpn_client *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "FortiClient for Windows",
          "vendor": "Fortinet, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "5.6.0 and below versions"
            }
          ]
        },
        {
          "product": "FortiClient for Mac OSX",
          "vendor": "Fortinet, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "5.6.0 and below versions"
            }
          ]
        },
        {
          "product": "FortiClient SSLVPN Client for Linux",
          "vendor": "Fortinet, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "4.4.2335 and below versions"
            }
          ]
        }
      ],
      "source": "psirt@fortinet.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*",
              "matchCriteriaId": "05C9130B-9139-407F-B6F9-9B64A8B830D6",
              "versionEndIncluding": "5.6.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:macos:*:*",
              "matchCriteriaId": "6DA8975F-A2E7-47D2-83BA-6990673124BC",
              "versionEndIncluding": "5.6.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:forticlient_sslvpn_client:*:*:*:*:*:linux:*:*",
              "matchCriteriaId": "B0DB26D0-44AA-4958-A926-B6BDCAA9402A",
              "versionEndIncluding": "4.4.2335",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Users\u0027 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 autenticaci\u00f3n 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 est\u00e1tico y algoritmos de cifrado d\u00e9biles."
    }
  ],
  "id": "CVE-2017-17543",
  "lastModified": "2026-06-17T01:11:14.240",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2017-17543",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-24T20:10:01.644124Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2018-04-26T20:29:00.243",
  "references": [
    {
      "source": "psirt@fortinet.com",
      "url": "https://fortiguard.com/advisory/FG-IR-17-214"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://fortiguard.com/advisory/FG-IR-17-214"
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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