CVE-2023-6927 (GCVE-0-2023-6927)

Vulnerability from cvelistv5 – Published: 2023-12-18 22:59 – Updated: 2025-11-11 15:55
VLAI?
Summary
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
https://access.redhat.com/errata/RHSA-2024:0094 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0095 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0096 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0097 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0098 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0100 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0101 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0798 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0799 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0800 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0801 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0804 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-6927 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2255027 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat build of Keycloak 22 Unaffected: 22-7 , < * (rpm)
    cpe:/a:redhat:build_keycloak:22::el9
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    Red Hat Red Hat build of Keycloak 22.0.8     cpe:/a:redhat:build_keycloak:22
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    Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7.6
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    Red Hat Red Hat Single Sign-On 7.6 for RHEL 7 Unaffected: 0:18.0.11-3.redhat_00001.1.el7sso , < * (rpm)
    cpe:/a:redhat:red_hat_single_sign_on:7.6::el7
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    Red Hat Red Hat Single Sign-On 7.6 for RHEL 7 Unaffected: 0:18.0.12-1.redhat_00001.1.el7sso , < * (rpm)
    cpe:/a:redhat:red_hat_single_sign_on:7.6::el7
Create a notification for this product.
    Red Hat Red Hat Single Sign-On 7.6 for RHEL 8 Unaffected: 0:18.0.11-3.redhat_00001.1.el8sso , < * (rpm)
    cpe:/a:redhat:red_hat_single_sign_on:7.6::el8
Create a notification for this product.
    Red Hat Red Hat Single Sign-On 7.6 for RHEL 8 Unaffected: 0:18.0.12-1.redhat_00001.1.el8sso , < * (rpm)
    cpe:/a:redhat:red_hat_single_sign_on:7.6::el8
Create a notification for this product.
    Red Hat Red Hat Single Sign-On 7.6 for RHEL 9 Unaffected: 0:18.0.11-3.redhat_00001.1.el9sso , < * (rpm)
    cpe:/a:redhat:red_hat_single_sign_on:7.6::el9
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    Red Hat Red Hat Single Sign-On 7.6 for RHEL 9 Unaffected: 0:18.0.12-1.redhat_00001.1.el9sso , < * (rpm)
    cpe:/a:redhat:red_hat_single_sign_on:7.6::el9
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    Red Hat RHEL-8 based Middleware Containers Unaffected: 7.6-39 , < * (rpm)
    cpe:/a:redhat:rhosemc:1.0::el8
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    Red Hat RHEL-8 based Middleware Containers Unaffected: 7.6-41 , < * (rpm)
    cpe:/a:redhat:rhosemc:1.0::el8
Create a notification for this product.
    Red Hat Single Sign-On 7.6.6     cpe:/a:redhat:red_hat_single_sign_on:7.6.6
Create a notification for this product.
Credits
Red Hat would like to thank Pontus Hanssen (Pontus.Hanssen@omegapoint.se) for reporting this issue.
Show details on NVD website

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      "published": "2023-12-18T23:15:10.027",
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      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
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    },
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  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Detection rules are retrieved from Rulezet.

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