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CVE-2008-4998

Estado: ModificadaMedia (6.9)—

postinst in twiki 4.1.2 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/twiki temporary file. NOTE: the vendor disputes this vulnerability, stating "this bug is invalid.

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)

Twiki — Twiki

CWE

Referencias

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{
  "id": "CVE-2008-4998",
  "cveTags": [
    {
      "tags": [
        "disputed"
      ],
      "sourceIdentifier": "cve@mitre.org"
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "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": "2008-11-07T19:36:24.070",
  "references": [
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494648",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2008/10/30/2",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.gentoo.org/show_bug.cgi?id=235770",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.gentoo.org/show_bug.cgi?id=235802",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494648",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2008/10/30/2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.gentoo.org/show_bug.cgi?id=235770",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.gentoo.org/show_bug.cgi?id=235802",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "postinst in twiki 4.1.2 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/twiki temporary file.  NOTE: the vendor disputes this vulnerability, stating \"this bug is invalid."
    },
    {
      "lang": "es",
      "value": "** DISPUTADA ** postinst en twiki v.4.1.2 permite a usuarios locales sobrescribir ficheros de su elección a través de un ataque de enlace simbólico al fichero temporal /tmp/twiki. NOTA: El fabricantes ha disputado esta vulnerabilidad, manteniendo \"este error es inválido\"."
    }
  ],
  "lastModified": "2026-06-16T22:58:55.057",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:twiki:twiki:4.1.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9FE3EEC6-7E05-4A37-97AA-D73E7D7A0E01"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}