4.7

CVE-2024-9666

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.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Collection URLhttps://github.com/keycloak/keycloak
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Package keycloak
Default Statusunaffected
Version < 24.0.9
Version 0
Status affected
Version < 26.0.6
Version 25.0.0
Status affected
VendorRed Hat
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Product Red Hat build of Keycloak 24
Default Statusaffected
Version < *
Version 24.0.9-1
Status unaffected
VendorRed Hat
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Product Red Hat build of Keycloak 24
Default Statusaffected
Version < *
Version 24-18
Status unaffected
VendorRed Hat
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Product Red Hat build of Keycloak 24
Default Statusaffected
Version < *
Version 24-18
Status unaffected
VendorRed Hat
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Product Red Hat build of Keycloak 24.0.9
Default Statusunaffected
VendorRed Hat
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Product Red Hat build of Keycloak 26.0
Default Statusaffected
Version < *
Version 26.0.6-2
Status unaffected
VendorRed Hat
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Product Red Hat build of Keycloak 26.0
Default Statusaffected
Version < *
Version 26.0-5
Status unaffected
VendorRed Hat
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Product Red Hat build of Keycloak 26.0
Default Statusaffected
Version < *
Version 26.0-6
Status unaffected
VendorRed Hat
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Product Red Hat build of Keycloak 26.0.6
Default Statusunaffected
VendorRed Hat
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Product Red Hat JBoss Enterprise Application Platform 8
Default Statusaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.01% 0.018
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
secalert@redhat.com 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.