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CVE-2023-4612

Estado: ModificadaCrítica (9.8)—

Improper Authentication vulnerability in Apereo CAS in jakarta.servlet.http.HttpServletRequest.getRemoteAddr method allows Multi-Factor Authentication bypass.This issue affects CAS: through 7.0.0-RC7. It is unknown whether in new versions the issue will be fixed. For the date of publication there is no patch, and the vendor does not treat it as a vulnerability.

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 (1)

Apereo — Central Authentication Service

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-4612",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-4612",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2023-11-17T19:57:40.527274Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "scope": "UNCHANGED",
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          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 3.9
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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      "affectedData": [
        {
          "vendor": "Apereo Foundation",
          "product": "CAS",
          "versions": [
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              "version": "0",
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              "lessThanOrEqual": "7.0.0-RC7"
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          "collectionURL": "https://www.apereo.org/projects/cas",
          "defaultStatus": "unknown"
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  "published": "2023-11-09T14:15:08.183",
  "references": [
    {
      "url": "https://cert.pl/en/posts/2023/11/CVE-2023-4612/",
      "tags": [
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      "source": "cvd@cert.pl"
    },
    {
      "url": "https://cert.pl/posts/2023/11/CVE-2023-4612/",
      "tags": [
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      "url": "https://cert.pl/en/posts/2023/11/CVE-2023-4612/",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
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      "description": [
        {
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          "value": "CWE-302"
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      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Authentication vulnerability in Apereo CAS in jakarta.servlet.http.HttpServletRequest.getRemoteAddr method allows Multi-Factor Authentication bypass.This issue affects CAS: through 7.0.0-RC7. It is unknown whether in new versions the issue will be fixed. For the date of publication there is no patch, and the vendor does not treat it as a vulnerability."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de autenticación incorrecta en Apereo CAS en jakarta.servlet.http.HttpServletRequest.getRemoteAddr permite omitir la autenticación multifactor. Este problema afecta a CAS: hasta 7.0.0-RC7. Se desconoce si en las nuevas versiones se solucionará el problema. Para la fecha de publicación no existe ningún parche y el proveedor no lo trata como una vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T06:38:13.390",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "versionEndExcluding": "7.0.0"
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            },
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              "matchCriteriaId": "9CE1DFD4-C7AD-4811-AE6B-F674F5C00BCC"
            },
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}