Millions of Requests in Seconds: Keycloak OIDC Flaw Affects Application Availability
CVE-2024-1249

7.4HIGH

Key Information:

Status
Red Hat AMQ Broker 7
Red Hat Build Of Keycloak 22
Red Hat Build Of Keycloak 22.0.10
Vendor
CVE Published:
17 April 2024

What is CVE-2024-1249?

A vulnerability exists in the OIDC component of Keycloak that permits unvalidated cross-origin messages via the 'checkLoginIframe' functionality. This security oversight allows attackers to orchestrate and dispatch an overwhelming volume of requests in a very short time span, which could severely compromise the availability of the affected application. The flaw stems from the lack of proper validation of incoming messages, raising concerns about its potential to facilitate denial-of-service attacks.

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References

https://access.redhat.com/errata/RHSA-2024:1860
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https://access.redhat.com/errata/RHSA-2024:1861
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https://access.redhat.com/errata/RHSA-2024:1862
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Adriano Márcio Monteiro for reporting this issue.
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