{
  "id": "CVE-2021-3639",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2022-08-22T15:15:13.633",
  "lastModified": "2023-02-12T23:41:41.270",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in mod_auth_mellon where it does not sanitize logout URLs properly. This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted web application URL that redirects to an external and potentially malicious server. The highest threat from this liability is to confidentiality and integrity."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un fallo en mod_auth_mellon que no sanea correctamente las URL de cierre de sesi\u00f3n. Este problema podr\u00eda ser usado por un atacante para facilitar los ataques de phishing enga\u00f1ando a usuarios para que visiten la URL de una aplicaci\u00f3n web confiable que redirige a un servidor externo y potencialmente malicioso. La mayor amenaza de esta responsabilidad es para la confidencialidad y la integridad."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7
      }
    ]
  },
  "weaknesses": [
    {
      "source": "secalert@redhat.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    },
    {
      "source": "nvd@nist.gov",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:uninett:mod_auth_mellon:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "0.18.0",
              "matchCriteriaId": "BCD3E2E3-47B7-4C46-8DD0-85000CA4D5D7"
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  ],
  "references": [
    {
      "url": "https://access.redhat.com/security/cve/CVE-2021-3639",
      "source": "secalert@redhat.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1980648",
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/latchset/mod_auth_mellon/commit/42a11261b9dad2e48d70bdff7c53dd57a12db6f5",
      "source": "secalert@redhat.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
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  ]
}