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CVE-2008-2936

Estado: ModificadaMedia (6.2)—

Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.

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)

Postfix — Postfix

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2008-2936",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 1.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2008-08-18T19:41:00.000",
  "references": [
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-2.6-20080814.HISTORY",
      "source": "secalert@redhat.com"
    },
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.3.15.HISTORY",
      "source": "secalert@redhat.com"
    },
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.4.8.HISTORY",
      "source": "secalert@redhat.com"
    },
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.5.4.HISTORY",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://article.gmane.org/gmane.mail.postfix.announce/110",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00002.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/31469",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/31474",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/31477",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/31485",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/31500",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/31530",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/32231",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200808-12.xml",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://securityreason.com/securityalert/4160",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://wiki.rpath.com/Advisories:rPSA-2008-0259",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1629",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/938323",
      "tags": [
        "US Government Resource"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:171",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2008-0839.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495474/100/0/threaded",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495632/100/0/threaded",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495882/100/0/threaded",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/30691",
      "tags": [
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1020700",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/2385",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/44460",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-2689",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10033",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://usn.ubuntu.com/636-1/",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.exploit-db.com/exploits/6337",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00271.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00287.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-2.6-20080814.HISTORY",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.3.15.HISTORY",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.4.8.HISTORY",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.5.4.HISTORY",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://article.gmane.org/gmane.mail.postfix.announce/110",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00002.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/31469",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/31474",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/31477",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/31485",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/31500",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/31530",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/32231",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200808-12.xml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securityreason.com/securityalert/4160",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://wiki.rpath.com/Advisories:rPSA-2008-0259",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1629",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/938323",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:171",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2008-0839.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495474/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495632/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495882/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/30691",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1020700",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/2385",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/44460",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-2689",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10033",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://usn.ubuntu.com/636-1/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/exploits/6337",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00271.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00287.html",
      "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": "Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message.  NOTE: this can be leveraged to gain privileges if there is a symlink to an init script."
    },
    {
      "lang": "es",
      "value": "Postfix antes de 2.3.15, 2.4 anterior a 2.4.8, 2.5 anterior a 2.5.4 y 2.6 antes de 2.6-20080814, cuando el sistema operativo admite enlaces duros (hard links) a enlaces simbólicos, permite a usuarios locales añadir mensajes de correo a un archivo al que apunta un enlace simbólico propiedad de root, creando un enlace duro a este enlace simbólico y enviando un mensaje después. NOTA: esto puede ser utilizado para obtener privilegios si hay un enlace simbólico a un script init."
    }
  ],
  "lastModified": "2026-06-16T22:54:46.217",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "vulnerable": true,
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            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "58F1FC50-B6EB-48FD-A2FA-B8BEB05719DD"
            },
            {
              "criteria": "cpe:2.3:a:postfix:postfix:2.5.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A1DE90BD-B5F9-4762-B086-130AB04F3CB0"
            },
            {
              "criteria": "cpe:2.3:a:postfix:postfix:2.5.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CCD5258B-C9DE-47BD-9172-27618F220201"
            },
            {
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              "matchCriteriaId": "E5B3F710-13EF-4A36-B191-E0FCC1D98E23"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorComment": "Please refer to the following links for additional version information (vendor release notes):\r\n\r\n\r\nPostfix 2.3 - ftp://mirrors.loonybin.net/pub/postfix/official/postfix-2.3.15.RELEASE_NOTES\r\n\r\nPostfix 2.4 - ftp://mirrors.loonybin.net/pub/postfix/official/postfix-2.4.8.RELEASE_NOTES\r\n\r\nPostfix 2.5 - ftp://mirrors.loonybin.net/pub/postfix/official/postfix-2.5.4.RELEASE_NOTES\r\n\r\nPostfix 2.6 - ftp://mirrors.loonybin.net/pub/postfix/experimental/postfix-2.6-20080814.RELEASE_NOTES",
  "sourceIdentifier": "secalert@redhat.com"
}