HTTP Request Smuggling Affecting keycloak-fips package, versions <26.0.6-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-KEYCLOAKFIPS-8421609
  • published27 Nov 2024
  • disclosed25 Nov 2024

Introduced: 25 Nov 2024

CVE-2024-9666  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Chainguard keycloak-fips to version 26.0.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak-fips package and not the keycloak-fips package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Scores

version 3.1