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CVE-2023-4491

Estado: ModificadaCrítica (9.8)—

Buffer overflow vulnerability in Easy Address Book Web Server 1.6 version. The exploitation of this vulnerability could allow an attacker to send a very long username string to /searchbook.ghp, asking for the name via a POST request, resulting in arbitrary code execution on the remote machine.

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)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-4491",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-4491",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-05T17:59:00.674057Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve-coordination@incibe.es",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      },
      {
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        "cvssData": {
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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              "status": "affected",
              "version": "1.6"
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          "defaultStatus": "unknown"
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  "published": "2023-10-04T13:15:25.823",
  "references": [
    {
      "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-software-products",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve-coordination@incibe.es"
    },
    {
      "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-software-products",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve-coordination@incibe.es",
      "description": [
        {
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          "value": "CWE-119"
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    },
    {
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      "source": "nvd@nist.gov",
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  "descriptions": [
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      "lang": "en",
      "value": "Buffer overflow vulnerability in Easy Address Book Web Server 1.6 version. The exploitation of this vulnerability could allow an attacker to send a very long username string to /searchbook.ghp, asking for the name via a POST request, resulting in arbitrary code execution on the remote machine."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de desbordamiento de búfer en Easy Address Book Web Server versión 1.6. La explotación de esta vulnerabilidad podría permitir a un atacante enviar un nombre de usuario muy largo a /searchbook.ghp, solicitando el nombre mediante una solicitud POST, lo que resultaría en la ejecución de código arbitrario en la máquina remota."
    }
  ],
  "lastModified": "2026-06-17T06:37:56.793",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:easy_address_book_web_server_project:easy_address_book_web_server:1.6:*:*:*:*:*:*:*",
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              "matchCriteriaId": "DC5C9543-0A62-454D-AB8D-EDDFA485E2B0"
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          "operator": "OR"
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  "sourceIdentifier": "cve-coordination@incibe.es"
}