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CVE-2008-3894

Estado: ModificadaBaja (2.1)—

IBM Lenovo firmware 7CETB5WW 2.05 almacena contraseñas de autenticación de pre-arranque en el búfer BIOS Keyboard y no limpia este búfer después de utilizarlo, lo cual permite a usuarios locales obtener información sensible leyendo localizaciones de memoria asociadas con este búfer.

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)

IBM — Lenovo 7cetb5ww

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2008-3894",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "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": "2008-09-03T14:12:00.000",
  "references": [
    {
      "url": "http://securityreason.com/securityalert/4207",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ivizsecurity.com/preboot-patch.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495808/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/4207",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ivizsecurity.com/preboot-patch.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495808/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Lenovo firmware 7CETB5WW 2.05 stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer."
    },
    {
      "lang": "es",
      "value": "IBM Lenovo firmware 7CETB5WW 2.05 almacena contraseñas de autenticación de pre-arranque en el búfer BIOS Keyboard y no limpia este búfer después de utilizarlo, lo cual permite a usuarios locales obtener información sensible leyendo localizaciones de memoria asociadas con este búfer."
    }
  ],
  "lastModified": "2026-06-16T22:56:45.523",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:ibm:lenovo_7cetb5ww:2.05:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "549CD434-052E-4277-B57E-F0ACAE6800EA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "Lenovo has released a BIOS update to address this issue.\n\nhttp://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-64580",
      "lastModified": "2008-11-05T00:00:00",
      "organization": "Lenovo"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}