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CVE-2009-2544

Estado: ModificadaMedia (6.8)—💥 Exploit

Directory traversal vulnerability in the Marcelo Costa FileServer component 1.0 for Microsoft Windows Live Messenger and Messenger Plus! Live (MPL) allows remote authenticated users to list arbitrary directories and read arbitrary files via a .. (dot dot) in a pathname.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Marcelo Costa — Fileserver

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-2544",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-07-20T18:30:01.343",
  "references": [
    {
      "url": "http://www.exploit-db.com/exploits/9093",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.exploit-db.com/exploits/9093",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Directory traversal vulnerability in the Marcelo Costa FileServer component 1.0 for Microsoft Windows Live Messenger and Messenger Plus! Live (MPL) allows remote authenticated users to list arbitrary directories and read arbitrary files via a .. (dot dot) in a pathname."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de salto de directorio en el componente Marcelo Costa FileServer v1.0 para Microsoft Windows Live Messenger and Messenger Plus! Live (MPL) permite a usuarios autenticados remotamente listar directorios de su elección y leer ficheros de su elección al utilizar .. (punto punto) en la ruta del fichero."
    }
  ],
  "lastModified": "2026-06-16T23:09:40.690",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:messenger_plus\\!_live:*:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "31C91606-7E28-42FE-8358-1B8FEB5D5594"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:windows_live_messenger:*:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "72D7041E-41A7-4A1E-A1E8-E1FC2AB551CB"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:marcelo_costa:fileserver:1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B371DF69-CD07-450C-A837-BA2D3A7CE1F1"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}