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
0.02% (4th 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 Base Scores

version 3.1