{
  "id": "CVE-2021-26088",
  "sourceIdentifier": "psirt@fortinet.com",
  "published": "2021-07-12T14:15:08.113",
  "lastModified": "2024-11-21T05:55:50.907",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending specifically crafted UDP login notification packets."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de autenticaci\u00f3n inapropiada en FSSO Collector versiones 5.0.295 de  y posteriores, puede permitir a un usuario no autenticado omitir una pol\u00edtica de firewall de FSSO y acceder a la red protegida por medio del env\u00edo de paquetes de notificaci\u00f3n de inicio de sesi\u00f3n UDP espec\u00edficamente dise\u00f1ados"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "psirt@fortinet.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.7
      },
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 6.0
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "baseScore": 5.8,
          "accessVector": "ADJACENT_NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 6.5,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortinet_single_sign-on:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "6.4.6",
              "matchCriteriaId": "B9C9AF5B-2891-4908-B559-186BD7B3CF3A"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortinet_single_sign-on:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0",
              "versionEndExcluding": "7.0.1",
              "matchCriteriaId": "B8245F68-9860-40E6-9F45-8B1789FA5620"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://fortiguard.com/advisory/FG-IR-20-191",
      "source": "psirt@fortinet.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://fortiguard.com/advisory/FG-IR-20-191",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}