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CVE PROGRAM SOURCE RECORD4.7 Medium

CVE-2024-9666

Org.keycloak/keycloak-quarkus-server: keycloak proxy header handling denial-of-service (dos) vulnerability

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Status
Published
Published
Updated
Assigning organization
redhat

Description

A vulnerability was found in the Keycloak Server. The Keycloak Server is vulnerable to a denial of service (DoS) attack due to improper handling of proxy headers. When Keycloak is configured to accept incoming proxy headers, it may accept non-IP values, such as obfuscated identifiers, without proper validation. This issue can lead to costly DNS resolution operations, which an attacker could exploit to tie up IO threads and potentially cause a denial of service. The attacker must have access to send requests to a Keycloak instance that is configured to accept proxy headers, specifically when reverse proxies do not overwrite incoming headers, and Keycloak is configured to trust these headers.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

keycloak

Default version status: unaffected

  • 0 to < 24.0.9affected
  • 25.0.0 to < 26.0.6affected

Red Hat Red Hat build of Keycloak 24

Default version status: affected

  • 24.0.9-1 to < *unaffected

Red Hat Red Hat build of Keycloak 24

Default version status: affected

  • 24-18 to < *unaffected

Red Hat Red Hat build of Keycloak 24

Default version status: affected

  • 24-18 to < *unaffected

Red Hat Red Hat build of Keycloak 24.0.9

Default version status: unaffected

Red Hat Red Hat build of Keycloak 26.0

Default version status: affected

  • 26.0.6-2 to < *unaffected

Red Hat Red Hat build of Keycloak 26.0

Default version status: affected

  • 26.0-5 to < *unaffected

Red Hat Red Hat build of Keycloak 26.0

Default version status: affected

  • 26.0-6 to < *unaffected

Red Hat Red Hat build of Keycloak 26.0.6

Default version status: unaffected

Red Hat Red Hat Build of Keycloak

Default version status: affected

Red Hat Red Hat JBoss Enterprise Application Platform 8

Default version status: unaffected

References