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CVE-2009-1601

Estado: ModificadaMedia (6.8)—

The Ubuntu clamav-milter.init script in clamav-milter before 0.95.1+dfsg-1ubuntu1.2 in Ubuntu 9.04 sets the ownership of the current working directory to the clamav account, which might allow local users to bypass intended access restrictions via read or write operations involving this directory.

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)

Ubuntu — Linux

CWE

Referencias

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{
  "id": "CVE-2009-1601",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.1,
        "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": "2009-05-11T15:30:00.563",
  "references": [
    {
      "url": "http://secunia.com/advisories/35000",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/34818",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-770-1",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/50311",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://launchpad.net/bugs/365823",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/35000",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/34818",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-770-1",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/50311",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://launchpad.net/bugs/365823",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Ubuntu clamav-milter.init script in clamav-milter before 0.95.1+dfsg-1ubuntu1.2 in Ubuntu 9.04 sets the ownership of the current working directory to the clamav account, which might allow local users to bypass intended access restrictions via read or write operations involving this directory."
    },
    {
      "lang": "es",
      "value": "El script Ubuntu-clamav milter.init de clamav-milter antes de la versión v0.95.1+dfsg-1ubuntu1.2 en Ubuntu v9.04 establece la propiedad del directorio de trabajo actual a la cuenta clamav, lo que podría permitir eludir las restricciones de acceso a los usuarios locales a través de operaciones lectura o escritura o en este directorio."
    }
  ],
  "lastModified": "2026-06-16T23:07:37.000",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:ubuntu:linux:9.04:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1AA1B57C-E00F-44E7-AB2E-24D689EC878C"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorImpact": "Per https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/365823\r\n\r\nA clean install of clamav-milter (0.95.1+dfsg-1ubuntu1.1) causes the root directory to become owned by the clamav user.\r\n\r\nThis was witnessed breaking ssh chroot environment.\r\n\r\nTEST CASE:\r\n- purge any existing clamav-milter installation, make sure you don't have any old /etc/init.d/clamav-milter init script around\r\n- check root directory's owner (should be root:root)\r\n- sudo apt-get install clamav-milter (the last one in Jaunty is 0.95.1+dfsg-1ubuntu1.1)\r\n- after installing the package, clamav-milter will start automatically (at least 'init.d/clamav-milter start' will execute)\r\n- check the root directory's owner:",
  "sourceIdentifier": "cve@mitre.org"
}