fkie_cve-2011-1739
Vulnerability from fkie_nvd
Published
2011-05-03 20:55
Modified
2025-04-11 00:51
Severity ?
Summary
The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.
References
secteam@freebsd.orghttp://secunia.com/advisories/44307Vendor Advisory
secteam@freebsd.orghttp://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc
secteam@freebsd.orghttp://securitytracker.com/id?1025425
secteam@freebsd.orghttp://www.securityfocus.com/bid/47517
secteam@freebsd.orghttp://www.vupen.com/english/advisories/2011/1076Vendor Advisory
secteam@freebsd.orghttps://exchange.xforce.ibmcloud.com/vulnerabilities/66981
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/44307Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc
af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1025425
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/47517
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2011/1076Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/66981
Impacted products
Vendor Product Version
freebsd freebsd 7.4
freebsd freebsd 8.0
freebsd freebsd 8.1
freebsd freebsd 8.2


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:7.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "0C94B745-BD27-423D-BBB6-A821CD9BC1C4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "3CF1F9EF-01AF-4708-AE02-765360AF3D66",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:8.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "9899C87E-2C09-46AE-BC24-1ACF012784CA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:8.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "DD5ECA1A-D9B4-4ED7-95EC-684E7AA2B765",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n makemask en mountd.c en mountd en FreeBSD v7.4 a v8.2 no controla correctamente el campo de una red, la especificaci\u00f3n de un bloque CIDR con una longitud de prefijo que no es un m\u00faltiplo entero de 8, lo que permite a atacantes remotos evitar las restricciones de acceso previsto en oportunistas circunstancias a trav\u00e9s de un montaje de petici\u00f3n NFS."
    }
  ],
  "id": "CVE-2011-1739",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2011-05-03T20:55:12.417",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/44307"
    },
    {
      "source": "secteam@freebsd.org",
      "url": "http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc"
    },
    {
      "source": "secteam@freebsd.org",
      "url": "http://securitytracker.com/id?1025425"
    },
    {
      "source": "secteam@freebsd.org",
      "url": "http://www.securityfocus.com/bid/47517"
    },
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.vupen.com/english/advisories/2011/1076"
    },
    {
      "source": "secteam@freebsd.org",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/66981"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/44307"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://securitytracker.com/id?1025425"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/47517"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.vupen.com/english/advisories/2011/1076"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/66981"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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