FKIE_CVE-2004-0189

Vulnerability from fkie_nvd - Published: 2004-03-15 05:00 - Updated: 2026-06-16 22:05
Severity
Summary
The "%xx" URL decoding function in Squid 2.5STABLE4 and earlier allows remote attackers to bypass url_regex ACLs via a URL with a NULL ("%00") character, which causes Squid to use only a portion of the requested URL when comparing it against the access control lists.
References
cve@mitre.orgftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt
cve@mitre.orgftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc
cve@mitre.orghttp://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000838
cve@mitre.orghttp://marc.info/?l=bugtraq&m=108084935904110&w=2
cve@mitre.orghttp://security.gentoo.org/glsa/glsa-200403-11.xml
cve@mitre.orghttp://www.debian.org/security/2004/dsa-474
cve@mitre.orghttp://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025
cve@mitre.orghttp://www.osvdb.org/5916
cve@mitre.orghttp://www.redhat.com/support/errata/RHSA-2004-133.html
cve@mitre.orghttp://www.redhat.com/support/errata/RHSA-2004-134.html
cve@mitre.orghttp://www.securityfocus.com/bid/9778Exploit, Patch, Vendor Advisory
cve@mitre.orghttp://www.squid-cache.org/Advisories/SQUID-2004_1.txtExploit, Patch, Vendor Advisory
cve@mitre.orghttps://exchange.xforce.ibmcloud.com/vulnerabilities/15366
cve@mitre.orghttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877
cve@mitre.orghttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941
af854a3a-2127-422b-91ae-364da2661108ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt
af854a3a-2127-422b-91ae-364da2661108ftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc
af854a3a-2127-422b-91ae-364da2661108http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000838
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=108084935904110&w=2
af854a3a-2127-422b-91ae-364da2661108http://security.gentoo.org/glsa/glsa-200403-11.xml
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2004/dsa-474
af854a3a-2127-422b-91ae-364da2661108http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/5916
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2004-133.html
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2004-134.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/9778Exploit, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Advisories/SQUID-2004_1.txtExploit, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/15366
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941
Impacted products
Vendor Product Version
squid squid 2.0_patch2
squid squid 2.1_patch2
squid squid 2.3_stable5
squid squid 2.4
squid squid 2.4_stable7
squid squid 2.5_stable3
squid squid 2.5_stable4
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:squid:squid:2.0_patch2:*:*:*:*:*:*:*",
              "matchCriteriaId": "E0AA7680-E004-44AC-9AE9-C0186459C4B4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:squid:squid:2.1_patch2:*:*:*:*:*:*:*",
              "matchCriteriaId": "05A4829D-4DC1-4CD2-B136-48719A254EA9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:squid:squid:2.3_stable5:*:*:*:*:*:*:*",
              "matchCriteriaId": "DCC6CCDC-237A-408E-9CAF-D41EC3A9D45F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:squid:squid:2.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "540AA8A9-A4AB-4DB2-B37E-11876348DF3A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:squid:squid:2.4_stable7:*:*:*:*:*:*:*",
              "matchCriteriaId": "885123F3-346F-451E-B72A-D0405F0B72E6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:squid:squid:2.5_stable3:*:*:*:*:*:*:*",
              "matchCriteriaId": "5F8096AB-99B9-4D08-AA13-6AFF0DD65BD4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:squid:squid:2.5_stable4:*:*:*:*:*:*:*",
              "matchCriteriaId": "A356D04A-7882-4A14-AD5F-2079EA0E79C7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The \"%xx\" URL decoding function in Squid 2.5STABLE4 and earlier allows remote attackers to bypass url_regex ACLs via a URL with a NULL (\"%00\") character, which causes Squid to use only a portion of the requested URL when comparing it against the access control lists."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n de decodificaci\u00f3n de URL \"%xx\" en Squid 2.5STABLE4  y anteriores permite a atacantes remotos saltarse las listas de control de acceso (ACL) url_regex mediante una URL con un car\u00e1cter nulo (\"%00\"), lo que hace que Squid use s\u00f3lo un parte de la URL solicitada para compararla con la lista de control de acceso."
    }
  ],
  "id": "CVE-2004-0189",
  "lastModified": "2026-06-16T22:05:07.943",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": true,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2004-03-15T05:00:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt"
    },
    {
      "source": "cve@mitre.org",
      "url": "ftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000838"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://marc.info/?l=bugtraq\u0026m=108084935904110\u0026w=2"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://security.gentoo.org/glsa/glsa-200403-11.xml"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.org/security/2004/dsa-474"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.osvdb.org/5916"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.redhat.com/support/errata/RHSA-2004-133.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.redhat.com/support/errata/RHSA-2004-134.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.securityfocus.com/bid/9778"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.squid-cache.org/Advisories/SQUID-2004_1.txt"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/15366"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "ftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000838"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://marc.info/?l=bugtraq\u0026m=108084935904110\u0026w=2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://security.gentoo.org/glsa/glsa-200403-11.xml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2004/dsa-474"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.osvdb.org/5916"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.redhat.com/support/errata/RHSA-2004-133.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.redhat.com/support/errata/RHSA-2004-134.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.securityfocus.com/bid/9778"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.squid-cache.org/Advisories/SQUID-2004_1.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/15366"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A877"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A941"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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