{
  "id": "CVE-2013-4851",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2013-07-29T13:59:56.933",
  "lastModified": "2024-11-21T01:56:31.877",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the kernel in FreeBSD 8.3 and 9.x through 9.1-RELEASE-p5 controls authorization for host/subnet export entries on the basis of group information sent by the client, which allows remote attackers to bypass file permissions on NFS filesystems via crafted requests."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n vfs_hang_addrlist en sys/kern/vfs_export.c en la implementaci\u00f3n del servidor NFS en el kernel de FreeBSD 8.3 y 9.x a la 9.1-RELEASE-p5 controla la autorizaci\u00f3n para exportar las entradas host/subnet en las bases del grupo de informaci\u00f3n enviado por el cliente, lo que permite a atacantes remotos evitar los permisos de ficheros en los sistemas NFS a trav\u00e9s de peticiones manipuladas."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 4.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:freebsd:freebsd:8.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "30C501A1-FE2D-41E7-A5DB-C61D8701B9B4"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "E6BD5BFF-260A-4A9E-B0AA-C8B8386B154E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "D78E559A-430D-4D50-8A83-58A37D393471"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:freebsd:freebsd:9.1:p4:*:*:*:*:*:*",
              "matchCriteriaId": "DD6B2A2E-6E8C-40D7-B29F-1FC9E8B1076B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:freebsd:freebsd:9.1:p5:*:*:*:*:*:*",
              "matchCriteriaId": "0ADB3AF3-5E13-4EC3-AE3C-128DF51E1DF9"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://svnweb.freebsd.org/base?view=revision&revision=244226",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.freebsd.org/security/advisories/FreeBSD-SA-13:08.nfsserver.asc",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/61484",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://svnweb.freebsd.org/base?view=revision&revision=244226",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.freebsd.org/security/advisories/FreeBSD-SA-13:08.nfsserver.asc",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/61484",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}