Vulnerability in Red Hat Build Of Keycloak
CVE-2024-4540
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (44.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Red Hat Build Of Keycloak
- Red Hat Build Of Keycloak 22 — versions 22.0.11-2, 22-15, 22-18
- Red Hat Build Of Keycloak 24 — versions 24.0.5-2, 24-10
- Red Hat Single Sign-On 7
- Red Hat Single Sign-On 7.6 For Rhel 7 — versions 0:18.0.14-1.redhat_00001.1.el7sso
- Red Hat Single Sign-On 7.6 For Rhel 8 — versions 0:18.0.14-1.redhat_00001.1.el8sso
- Red Hat Single Sign-On 7.6 For Rhel 9 — versions 0:18.0.14-1.redhat_00001.1.el9sso
- Red Hat Rhel-8 Based Middleware Containers — versions 7.6-49
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2024:3566 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3567 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3568 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3570 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3572 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3573 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3574 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3575 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3576 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2024-4540 (vdb-entry)
Frequently asked questions
- What is CVE-2024-4540?
- CVE-2024-4540 is a high-severity vulnerability in Red Hat Build Of Keycloak, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2024-06-03.
- How severe is CVE-2024-4540?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-4540 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.