CVE-2023-0657
Keycloak: impersonation via logout token exchange
LOW 3.4
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Deferred
Description
A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.
Weaknesses (CWE)
- CWE-273 — Improper Check for Dropped Privileges
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 3.4 | CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N | redhat |
| CVSS 3.1 | LOW 3.4 | CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N | NVD · secalert@redhat.com (Secondary) |
Advisories
- GHSA-7fpj-9hr8-28vh — Keycloak vulnerable to impersonation via logout token exchange
European references
- ENISA EUVD · EUVD-2024-1142
- GCVE · GCVE-0-2023-0657
Affected products
| Product | Versions |
|---|---|
| keycloak | affected 0 < 22.0.10 ; affected 23.0.0 < 24.0.3 |
| Red Hat · Red Hat build of Keycloak 22 | unaffected 22.0.10-1 < * |
| Red Hat · Red Hat build of Keycloak 22 | unaffected 22-13 < * |
| Red Hat · Red Hat build of Keycloak 22 | unaffected 22-16 < * |
| Red Hat · Red Hat build of Keycloak 22.0.10 | |
| Red Hat · Red Hat Single Sign-On 7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |