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CVE-2023-46218

Estado: ModificadaMedia (6.5)—

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.

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 (2)

Fedoraproject — FedoraHaxx — Curl

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-46218",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-46218",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-28T16:38:08.000092Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "NETWORK",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "curl",
          "product": "curl",
          "versions": [
            {
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              "version": "8.4.0",
              "versionType": "semver",
              "lessThanOrEqual": "8.4.0"
            },
            {
              "status": "unaffected",
              "version": "7.46.0",
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            }
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      ]
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "affectedData": [
        {
          "vendor": "Siemens",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "versions": [
            {
              "status": "affected",
              "version": "V3.1.5",
              "lessThan": "*",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
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          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
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        {
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          "product": "RUGGEDCOM ROX MX5000",
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              "version": "0",
              "lessThan": "V2.17.0",
              "versionType": "custom"
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          "versions": [
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        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM ROX RX1400",
          "versions": [
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              "version": "0",
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            }
          ],
          "defaultStatus": "unknown"
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        {
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          ],
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        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM ROX RX1510",
          "versions": [
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              "version": "0",
              "lessThan": "V2.17.0",
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            }
          ],
          "defaultStatus": "unknown"
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        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM ROX RX1511",
          "versions": [
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        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM ROX RX1512",
          "versions": [
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              "versionType": "custom"
            }
          ],
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        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM ROX RX1524",
          "versions": [
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              "version": "0",
              "lessThan": "V2.17.0",
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            }
          ],
          "defaultStatus": "unknown"
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        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM ROX RX1536",
          "versions": [
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              "status": "affected",
              "version": "0",
              "lessThan": "V2.17.0",
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            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM ROX RX5000",
          "versions": [
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            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "vendor": "Siemens",
          "product": "SINEC NMS",
          "versions": [
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              "status": "affected",
              "version": "0",
              "lessThan": "V3.0 SP1",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-12-07T01:15:07.160",
  "references": [
    {
      "url": "https://curl.se/docs/CVE-2023-46218.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://hackerone.com/reports/2212193",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20240125-0007/",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5587",
      "source": "support@hackerone.com"
    },
    {
      "url": "https://curl.se/docs/CVE-2023-46218.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://hackerone.com/reports/2212193",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20240125-0007/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5587",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-093430.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-202008.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-331112.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-178"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "This flaw allows a malicious HTTP server to set \"super cookies\" in curl that\nare then passed back to more origins than what is otherwise allowed or\npossible. This allows a site to set cookies that then would get sent to\ndifferent and unrelated sites and domains.\n\nIt could do this by exploiting a mixed case flaw in curl's function that\nverifies a given cookie domain against the Public Suffix List (PSL). For\nexample a cookie could be set with `domain=co.UK` when the URL used a lower\ncase hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain."
    },
    {
      "lang": "es",
      "value": "Esta falla permite que un servidor HTTP malicioso establezca \"supercookies\" en curl que luego se devuelven a más orígenes de los que están permitidos o son posibles. Esto permite que un sitio establezca cookies que luego se enviarán a sitios y dominios diferentes y no relacionados. Podría hacer esto explotando una falla de mayúsculas y minúsculas en la función de curl que verifica un dominio de cookie determinado con Public Suffix List (PSL). Por ejemplo, una cookie podría configurarse con `domain=co.UK` cuando la URL utilizaba un nombre de host en minúscula `curl.co.uk`, aunque `co.uk` aparezca como un dominio PSL."
    }
  ],
  "lastModified": "2026-06-17T06:30:22.953",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CDCA27BA-B527-4B8F-91D5-CEE58282FD45",
              "versionEndIncluding": "8.4.0",
              "versionStartIncluding": "7.46.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "support@hackerone.com"
}