CVE-2024-4540

HIGH

Keycloak < 24.0.5 - Cleartext Storage of Sensitive Information in OAuth 2.0 PAR KC_RESTART Cookie

Title source: llm
STIX 2.1

Description

A flaw was found in Keycloak in OAuth 2.0 Pushed Authorization Requests (PAR). Client-provided parameters were found to be included in plain text in the KC_RESTART cookie returned by the authorization server's HTTP response to a `request_uri` authorization request, possibly leading to an information disclosure vulnerability.

References (11)

Core 11
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3566
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3567
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3568
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3570
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3572
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3573
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3574
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3575
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3576
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2024-4540
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2279303

Scores

CVSS v3 7.5
EPSS 0.0055
EPSS Percentile 41.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-312
Status published
Products (12)
org.keycloak/keycloak-services 0 - 24.0.5Maven
Red Hat/Red Hat Build of Keycloak
Red Hat/Red Hat build of Keycloak 22 22-15
Red Hat/Red Hat build of Keycloak 22 22-18
Red Hat/Red Hat build of Keycloak 22 22.0.11-2
Red Hat/Red Hat build of Keycloak 24 24-10
Red Hat/Red Hat build of Keycloak 24 24.0.5-2
Red Hat/Red Hat Single Sign-On 7
Red Hat/Red Hat Single Sign-On 7.6 for RHEL 7 0:18.0.14-1.redhat_00001.1.el7sso
Red Hat/Red Hat Single Sign-On 7.6 for RHEL 8 0:18.0.14-1.redhat_00001.1.el8sso
... and 2 more
Published Jun 03, 2024
Tracked Since Feb 18, 2026