« Volver al listado

CVE-2010-2023

Estado: ModificadaMedia (4.4)—

transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file.

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)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2010-2023",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.4,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "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": "2010-06-07T17:12:48.247",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://bugs.exim.org/show_bug.cgi?id=988",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/40019",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/40123",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/43243",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/511653/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/40451",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-1060-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/1402",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2011/0364",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=600093",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/59043",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://bugs.exim.org/show_bug.cgi?id=988",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/40019",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/40123",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/43243",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/511653/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/40451",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-1060-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/1402",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2011/0364",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=600093",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/59043",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file."
    },
    {
      "lang": "es",
      "value": "transports/appendfile.c en Exim antes de v4.72, cuando se usa un directorio de correo con permisos de escritura para todos y sticky-bit activado, no verifica el campo de st_nlink de los ficheros de buzón de correo, que permite a usuarios locales causar una denegación de servicio o posiblemente obtener privilegios mediante la creación de un vínculo físico a un archivo de otro usuario."
    }
  ],
  "lastModified": "2026-06-16T23:19:50.067",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3F612EF3-5909-4AA7-9041-02C193E447C4",
              "versionEndIncluding": "4.71"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0EC43E6B-2DA9-496E-BAD2-04FF4C3A53FA"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.20:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "04C4B45D-A0AC-42B3-99D7-91F7B8D15B69"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.21:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ED822CDF-C94B-4A16-BEEB-FECE51CBB744"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.22:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B52A1ECA-44CC-4DDE-B1AD-25AE27605317"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.23:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3E7D5D6F-8FDB-4AC2-A4D9-16E632AC8EAC"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.24:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A4FEC2B4-BD68-428E-91BC-BC85F72E3BE8"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.30:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "23EEBB47-2495-4FDB-9A55-415DA69392E8"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.31:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D4A8E154-32CC-4665-82A0-1DE7A51B2435"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.32:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4B594190-DF8F-45AE-8579-BD7B4568606F"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.33:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BD2D8712-4DF9-4A73-93A7-7719C3502E18"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.34:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2D9DF054-4CBF-4BA7-9A42-5627DC4B6A68"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.40:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B13E6533-BEB9-4082-9063-7E3CCBF4C36C"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.41:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "879B9641-3245-4CF7-912A-FD21372F46F4"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.42:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A91CA841-BBCA-4EF9-BC00-478A18797941"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.43:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EEA3F58C-3EF2-48B9-9171-7EFE72B1A3DD"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.44:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AFB37C45-54E7-4E91-8E6D-0A3E764E1702"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.50:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "31CBE3C0-4918-4FA6-B1E7-6336913EF8D6"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.51:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FC45BCE0-F190-4050-8B3B-869D0C1033AE"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.52:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6FD0E5A4-3FCB-46C1-A709-CA15D96FA9B0"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.53:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D3335C80-97AE-42DB-B125-0D3FA57D8317"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.54:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0F83560A-BDD7-456D-846C-D1DAF5C9DA64"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.60:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "22B9FD06-13E3-47CA-AB67-691DC3A9C330"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.61:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EE2A81F2-3E53-4A31-BCC6-BDC0E1B62CC8"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.62:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2A03C071-87BF-4D5E-ABED-472ABAEFAC71"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.63:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D1D96C53-989C-42C8-9E71-A206B78ED55A"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.64:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "30190EAB-7140-4E0A-B7A5-8FA8BD0749C9"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.65:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E0BD63C5-C916-4D7D-AE81-7B9676FC0951"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.66:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CCD8FE2F-8D53-407A-BB83-EB7725456D71"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.67:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "162F5CB4-1931-4236-8519-DD63A98BCEE0"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.68:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9EF06704-E078-42FA-89DA-7BCA169D0E5B"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.69:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B8F2CB6E-1ED1-4E56-9532-30D2BA6A53DD"
            },
            {
              "criteria": "cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "452E9C94-B7FF-40A9-A7F9-FC38824F6135"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}