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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-08-23T15:52:50

Updated: 2024-08-03T17:09:09.546Z

Reserved: 2021-09-24T00:00:00

Link: CVE-2021-3827

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-08-23T16:15:10.030

Modified: 2022-11-30T18:46:55.567

Link: CVE-2021-3827

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-09-02T00:00:00Z

Links: CVE-2021-3827 - Bugzilla