rhsa-2024:6890
Vulnerability from csaf_redhat
Published
2024-09-19 17:06
Modified
2025-07-10 09:27
Summary
Red Hat Security Advisory: Red Hat build of Keycloak 24.0.8 Update

Notes

Topic
New Red Hat build of Keycloak 24.0.8 packages with security impact Important are available from the Customer Portal
Details
Red Hat build of Keycloak 24.0.8 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. Security fixes: * Improper Verification of SAML Responses Leading to Privilege Escalation in Keycloak (CVE-2024-8698) * Vulnerable Redirect URI Validation Results in Open Redirec (CVE-2024-8883)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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{
  "document": {
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      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "New Red Hat build of Keycloak 24.0.8 packages with security impact Important are available from the Customer Portal",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat build of Keycloak 24.0.8 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.\n\nSecurity fixes:\n* Improper Verification of SAML Responses Leading to Privilege Escalation in Keycloak (CVE-2024-8698)\n* Vulnerable Redirect URI Validation Results in Open Redirec (CVE-2024-8883)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2024:6890",
        "url": "https://access.redhat.com/errata/RHSA-2024:6890"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
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        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2312511"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_6890.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat build of Keycloak 24.0.8 Update",
    "tracking": {
      "current_release_date": "2025-07-10T09:27:53+00:00",
      "generator": {
        "date": "2025-07-10T09:27:53+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.6.3"
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      },
      "id": "RHSA-2024:6890",
      "initial_release_date": "2024-09-19T17:06:33+00:00",
      "revision_history": [
        {
          "date": "2024-09-19T17:06:33+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2024-09-19T17:06:33+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2025-07-10T09:27:53+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Build of Keycloak",
                "product": {
                  "name": "Red Hat Build of Keycloak",
                  "product_id": "Red Hat Build of Keycloak",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:build_keycloak:24"
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            "category": "product_family",
            "name": "Red Hat build of Keycloak"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Tanner Emek"
          ]
        }
      ],
      "cve": "CVE-2024-8698",
      "cwe": {
        "id": "CWE-347",
        "name": "Improper Verification of Cryptographic Signature"
      },
      "discovery_date": "2024-09-10T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2311641"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw exists in the SAML signature validation method within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Reference element used to specify the signed element. This flaw allows attackers to create crafted responses that can bypass the validation, potentially leading to privilege escalation or impersonation attacks.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "keycloak-saml-core: Improper Verification of SAML Responses Leading to Privilege Escalation in Keycloak",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is of high severity due to its potential to facilitate privilege escalation and user impersonation in systems using SAML for authentication. The core issue stems from improper validation logic in Keycloak\u0027s signature validation method, which relies on the position of signatures rather than explicitly checking the referenced elements. By manipulating the XML structure, an attacker can bypass signature validation and inject an unsigned assertion while retaining a valid signed one. This allows unauthorized access to high-privileged accounts, leading to significant security risks in SAML-based identity providers and service providers.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Build of Keycloak"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2024-8698"
        },
        {
          "category": "external",
          "summary": "RHBZ#2311641",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2311641"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2024-8698",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-8698"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-8698",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8698"
        }
      ],
      "release_date": "2024-09-19T15:12:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-09-19T17:06:33+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.",
          "product_ids": [
            "Red Hat Build of Keycloak"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:6890"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "Red Hat Build of Keycloak"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "Red Hat Build of Keycloak"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "keycloak-saml-core: Improper Verification of SAML Responses Leading to Privilege Escalation in Keycloak"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Niklas Conrad",
            "Karsten Meyer zu Selhausen"
          ]
        }
      ],
      "cve": "CVE-2024-8883",
      "cwe": {
        "id": "CWE-601",
        "name": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)"
      },
      "discovery_date": "2024-09-16T06:17:01.573000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2312511"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a \u0027Valid Redirect URI\u0027 is set to http://localhost or http://127.0.0.1, enabling sensitive information such as authorization codes to be exposed to the attacker, potentially leading to session hijacking.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Keycloak: Vulnerable Redirect URI Validation Results in Open Redirec",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Within regulated environments, a combination of the following controls acts as a significant barrier to successfully exploiting a CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027) vulnerability and therefore downgrades the severity of this particular CVE from Moderate to Low.\n\nThe platform limits access to external systems and enforces strict network security boundaries through a deny-all, allow-exception system implementation. This ensures that access to external websites and systems is strictly controlled, monitored, and, if necessary, restricted. By enforcing policies on which external sites or domains users and applications can interact with, this control minimizes the risk of users being redirected to malicious websites. For example, organizations may implement allowlists of approved URLs or domains, blocking any redirections to untrusted or unauthorized sites. The platform\u0027s implementation of boundary protection includes firewalls, gateways, and intrusion detection/prevention systems. This control prevents unauthorized traffic, including malicious redirect requests, from entering or leaving the internal network. The boundary protection control can enforce URL filtering, domain allowlisting, and content inspection to block redirection attempts to known malicious domains. When configured properly, boundary protection mechanisms ensure that even if an open redirect vulnerability is exploited, the impact is limited by blocking access to harmful external sites.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Build of Keycloak"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2024-8883"
        },
        {
          "category": "external",
          "summary": "RHBZ#2312511",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2312511"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2024-8883",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-8883"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-8883",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8883"
        },
        {
          "category": "external",
          "summary": "https://github.com/keycloak/keycloak/blob/main/services/src/main/java/org/keycloak/protocol/oidc/utils/RedirectUtils.java",
          "url": "https://github.com/keycloak/keycloak/blob/main/services/src/main/java/org/keycloak/protocol/oidc/utils/RedirectUtils.java"
        }
      ],
      "release_date": "2024-09-19T15:13:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-09-19T17:06:33+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.",
          "product_ids": [
            "Red Hat Build of Keycloak"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:6890"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "Red Hat Build of Keycloak"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Build of Keycloak"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Keycloak: Vulnerable Redirect URI Validation Results in Open Redirec"
    }
  ]
}


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