CVE-2023-4639

Estado: AplazadaAlta (7.4)—

A flaw was found in Undertow, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Puntuación base: 7.4

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.09%
Percentil entre todas las CVEs puntuadas: 64
Fecha de la puntuación: 5/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access75 %
Impacto principalT1005 Data from Local Systemcollection80 %
Impacto secundarioT1565.003 Runtime Data Manipulationimpact75 %

Vector CVSS AV:N/PR:N/UI:N indica acceso remoto sin privilegios ni interacción (T1190). La vulnerabilidad permite exfiltrar cookies HttpOnly (T1005: lectura de datos) y falsificar valores de cookies (T1565.003: manipulación de datos web).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Network Segmentation Vulnerability Scanning Restrict File and Directory Permissions Privileged Account Management Limit Access to Resource Over Network Filter Network Traffic

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Redhat — Undertow^AI

CWE

CWE-444

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2023-4639",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-4639",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-11-17T16:17:32.886591Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.4,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:migration_toolkit_runtimes:1.0::el8"
          ],
          "vendor": "Red Hat",
          "product": "Migration Toolkit for Runtimes 1 on RHEL 8",
          "versions": [
            {
              "status": "unaffected",
              "version": "1.2-23",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "mtr/mtr-operator-bundle",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:migration_toolkit_runtimes:1.0::el8"
          ],
          "vendor": "Red Hat",
          "product": "Migration Toolkit for Runtimes 1 on RHEL 8",
          "versions": [
            {
              "status": "unaffected",
              "version": "1.2-15",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "mtr/mtr-rhel8-operator",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:migration_toolkit_runtimes:1.0::el8"
          ],
          "vendor": "Red Hat",
          "product": "Migration Toolkit for Runtimes 1 on RHEL 8",
          "versions": [
            {
              "status": "unaffected",
              "version": "1.2-16",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "mtr/mtr-web-container-rhel8",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:migration_toolkit_runtimes:1.0::el8"
          ],
          "vendor": "Red Hat",
          "product": "Migration Toolkit for Runtimes 1 on RHEL 8",
          "versions": [
            {
              "status": "unaffected",
              "version": "1.2-14",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "mtr/mtr-web-executor-container-rhel8",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7.4"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el8"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:2.2.30-1.SP1_redhat_00001.1.el8eap",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "eap7-undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:2.2.30-1.SP1_redhat_00001.1.el9eap",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "eap7-undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el7"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:2.2.30-1.SP1_redhat_00001.1.el7eap",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "eap7-undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.0"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 8",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el8",
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:2.3.11-1.SP1_redhat_00001.1.el8eap",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "eap8-undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el8",
            "cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:2.3.11-1.SP1_redhat_00001.1.el9eap",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "eap8-undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:migration_toolkit_applications:6"
          ],
          "vendor": "Red Hat",
          "product": "Migration Toolkit for Applications 6",
          "packageName": "org.keycloak-keycloak-parent",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:camel_spring_boot:3"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat build of Apache Camel for Spring Boot 3",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:service_registry:2"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat build of Apicurio Registry",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:quarkus:2"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat build of Quarkus",
          "packageName": "io.quarkus/quarkus-undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:8"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Data Grid 8",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_brms_platform:7"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Decision Manager 7",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Fuse 7",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:integration:1"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Integration Camel K",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:camel_quarkus:2"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Integration Camel Quarkus",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:integration:1"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Integration Change Data Capture",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_data_grid:7"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Data Grid 7",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:6"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Enterprise Application Platform 6",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:6"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Fuse 6",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_fuse_service_works:6"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Fuse Service Works 6",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_bpms_platform:7"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Process Automation 7",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:/a:redhat:red_hat_single_sign_on:7"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Single Sign-On 7",
          "packageName": "undertow",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-11-17T11:15:05.840",
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:1674",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:1675",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:1676",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:1677",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:2763",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:2764",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2024:3919",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2023-4639",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2166022",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20250207-0001/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Undertow, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en Undertow que analiza incorrectamente las cookies con ciertos caracteres que delimitan valores en las solicitudes entrantes. Este problema podría permitir que un atacante construya un valor de cookie para extraer valores de cookies HttpOnly o falsificar valores de cookies adicionales arbitrarios, lo que lleva a un acceso o modificación de datos no autorizados. La principal amenaza de esta falla afecta la confidencialidad e integridad de los datos."
    }
  ],
  "lastModified": "2026-06-17T06:38:16.520",
  "sourceIdentifier": "secalert@redhat.com"
}