CVE-2021-3827
keycloak
MEDIUM 6.8
En bref
- Source
- NVD
- EPSS
- EPSS 1.11 % · centile 66 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
Description
A flaw was found in keycloak, where the default ECP binding flow allows other authentication flows to be bypassed. By exploiting this behavior, an attacker can bypass the MFA authentication by sending a SOAP request with an AuthnRequest and Authorization header with the user's credentials. The highest threat from this vulnerability is to confidentiality and integrity.
Faiblesses (CWE)
- CWE-287 — Authentification incorrecte
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · nvd@nist.gov (Primary) |
Avis
- GHSA-4pc7-vqv5-5r3v — ECP SAML binding bypasses authentication flows
Références européennes
- ENISA EUVD · EUVD-2022-1622
- GCVE · GCVE-0-2021-3827
Configurations affectées (CPE NVD)
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*< 18.0.0cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:single_sign-on:7.5.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:openshift_container_platform:4.8:*:*:*:*:*:*:*cpe:2.3:a:redhat:openshift_container_platform:4.9:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| keycloak | affected Fixed in v18.0.0 |
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 |