ncsc-2025-0141
Vulnerability from csaf_ncscnl
Published
2025-05-06 07:12
Modified
2025-05-06 07:12
Summary
Kwetsbaarheden verholpen in Keycloak

Notes

The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten
Red Hat heeft kwetsbaarheden verholpen in Keycloak.
Interpretaties
De kwetsbaarheden omvatten een probleem waarbij JWT-tokens met lange vervaltijden kunnen leiden tot oneindige groei in de cache, wat kan resulteren in een OutOfMemoryError en een Denial-of-Service voor legitieme gebruikers. Daarnaast kan de verificatie van trust store-certificaten worden overgeslagen als het verificatiebeleid is ingesteld op 'ALL', wat kan leiden tot ongeautoriseerde toegang. Bovendien kan een kwetsbaarheid in het org.keycloak.authorization-pakket gebruikers in staat stellen om vereiste beveiligingsacties te omzeilen, zoals het inschakelen van twee-factor-authenticatie, wat de beveiliging van gebruikersaccounts in gevaar kan brengen.
Oplossingen
Red Hat heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans
medium
Schade
high
CWE-297
Improper Validation of Certificate with Host Mismatch
CWE-770
Allocation of Resources Without Limits or Throttling
CWE-287
Improper Authentication


To clipboard 

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "Red Hat heeft kwetsbaarheden verholpen in Keycloak.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheden omvatten een probleem waarbij JWT-tokens met lange vervaltijden kunnen leiden tot oneindige groei in de cache, wat kan resulteren in een OutOfMemoryError en een Denial-of-Service voor legitieme gebruikers. Daarnaast kan de verificatie van trust store-certificaten worden overgeslagen als het verificatiebeleid is ingesteld op \u0027ALL\u0027, wat kan leiden tot ongeautoriseerde toegang. Bovendien kan een kwetsbaarheid in het org.keycloak.authorization-pakket gebruikers in staat stellen om vereiste beveiligingsacties te omzeilen, zoals het inschakelen van twee-factor-authenticatie, wat de beveiliging van gebruikersaccounts in gevaar kan brengen.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Red Hat heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Validation of Certificate with Host Mismatch",
        "title": "CWE-297"
      },
      {
        "category": "general",
        "text": "Allocation of Resources Without Limits or Throttling",
        "title": "CWE-770"
      },
      {
        "category": "general",
        "text": "Improper Authentication",
        "title": "CWE-287"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Source - redhat",
        "url": "https://access.redhat.com/errata/RHSA-2025:4335"
      },
      {
        "category": "external",
        "summary": "Source raw - redhat",
        "url": "https://access.redhat.com/hydra/rest/securitydata/csaf/RHSA-2025:4335.json"
      },
      {
        "category": "external",
        "summary": "Source - redhat",
        "url": "https://access.redhat.com/errata/RHSA-2025:4336"
      },
      {
        "category": "external",
        "summary": "Source raw - redhat",
        "url": "https://access.redhat.com/hydra/rest/securitydata/csaf/RHSA-2025:4336.json"
      }
    ],
    "title": "Kwetsbaarheden verholpen in Keycloak",
    "tracking": {
      "current_release_date": "2025-05-06T07:12:42.075830Z",
      "generator": {
        "date": "2025-02-25T15:15:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.0"
        }
      },
      "id": "NCSC-2025-0141",
      "initial_release_date": "2025-05-06T07:12:42.075830Z",
      "revision_history": [
        {
          "date": "2025-05-06T07:12:42.075830Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
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    }
  },
  "product_tree": {
    "branches": [
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                "product": {
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                      "product_id": "CSAFPID-2788737",
                      "product_identification_helper": {
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        "name": "Allocation of Resources Without Limits or Throttling"
      },
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        },
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        "name": "Improper Validation of Certificate with Host Mismatch"
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          "title": "CVSSV4"
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          "CSAFPID-2788737",
          "CSAFPID-2789749",
          "CSAFPID-2788271"
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      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-3910",
          "url": "https://api.ncsc.nl/velma/v1/vulnerabilities/2025/CVE-2025-3910.json"
        }
      ],
      "title": "CVE-2025-3910"
    }
  ]
}


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