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CVE-2009-0801

Estado: ModificadaMedia (5.4)—

Squid, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.

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)

Squid — Squid WEB Proxy Cache

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-0801",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:C/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-03-04T16:30:00.170",
  "references": [
    {
      "url": "http://www.kb.cert.org/vuls/id/435052",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/33858",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/435052",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/33858",
      "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": "Squid, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header."
    },
    {
      "lang": "es",
      "value": "Squid cuando el modo de interceptación trasparente está habilitado, utiliza la cabecera HTTP Host para determinar el punto final remoto, esto permite a atacantes remotos evitar los controles de acceso para Flash, Java, Silverlight y puede que otras tecnologías y permite que se comunique con sitios de intranet restringidos a través de una página Web manipulada que provoca que un cliente envíe solicitudes HTTP con una cabecera Host modificada."
    }
  ],
  "lastModified": "2026-06-16T23:05:50.697",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:2.7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "59B8B26B-B58B-4A84-95BF-A271FEE36F4F"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:2.7.stable5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "47A0A485-9C22-4A1E-9224-F777C8407013"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:2.7.stable6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6CC68017-20A2-4519-94AD-1A720692323C"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "18A99A70-46CE-4F1F-BC50-A9A32DBB511E"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_pre1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "64F8F1B9-A281-47C0-88EB-417A6A5B9F00"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_pre2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0EECA433-3770-4ADE-8962-181FCC3590E2"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_pre3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "28613D22-9E8B-4231-9AC9-523D506A200A"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5F8DBB70-1047-451D-9853-8FA404A307FF"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "26EBDB74-8847-4FBD-B638-677CFEF6C062"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5B4C1903-AE1A-46E1-9095-4656BEA54754"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5CE8DDCB-0371-4220-A43E-946153EB02FE"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ED179F50-3DCA-4853-875E-BCB684FF1D8E"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0BE6BD41-C6DB-442B-9844-9792255EB268"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A29F22EA-DFC8-407D-9A08-0981AFA97A2B"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable12:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6E1D7E85-BBB6-4D8F-8543-9E0A0068DD74"
            },
            {
              "criteria": "cpe:2.3:a:squid:squid_web_proxy_cache:3.0_stable13:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "55F27E45-FD71-46C1-80F9-4A4145DE2A50"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2009-0801\n\nThe Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.  More information regarding issue severity can be found here: http://www.redhat.com/security/updates/classification/",
      "lastModified": "2009-03-09T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}