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CVE-2019-9648

Estado: ModificadaMedia (5.3)—

An issue was discovered in the SFTP Server component in Core FTP 2.0 Build 674. A directory traversal vulnerability exists using the SIZE command along with a \..\..\ substring, allowing an attacker to enumerate file existence based on the returned information.

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)

Coreftp — Core FTP

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-9648",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "cvssData": {
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          "version": "3.0",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
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  "affected": [
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      "affectedData": [
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  "published": "2019-03-22T19:29:00.480",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/154204/CoreFTP-Server-SIZE-Directory-Traversal.html",
      "source": "cve@mitre.org"
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    {
      "url": "http://seclists.org/fulldisclosure/2019/Aug/21",
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      "url": "http://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509",
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        "Mailing List",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the SFTP Server component in Core FTP 2.0 Build 674. A directory traversal vulnerability exists using the SIZE command along with a \\..\\..\\ substring, allowing an attacker to enumerate file existence based on the returned information."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en el componente SFTP Server en Core FTP 2.0 Build 674. Existe una vulnerabilidad de salto de directorio empleando el comando SIZE junto con una subcadena \\..\\..\\, lo que permite que un atacante enumere la existencia de archivos basándose en la información devuelta."
    }
  ],
  "lastModified": "2026-06-17T02:44:07.513",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:coreftp:core_ftp:2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
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          ],
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  "sourceIdentifier": "cve@mitre.org"
}