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.
References
| Link | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3827 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2007512 | Issue Tracking Vendor Advisory |
| https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d | Patch Third Party Advisory |
| https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v | Third Party Advisory |
| https://access.redhat.com/security/cve/CVE-2021-3827 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2007512 | Issue Tracking Vendor Advisory |
| https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d | Patch Third Party Advisory |
| https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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History
21 Nov 2024, 06:22
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://access.redhat.com/security/cve/CVE-2021-3827 - Vendor Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2007512 - Issue Tracking, Vendor Advisory | |
| References | () https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d - Patch, Third Party Advisory | |
| References | () https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v - Third Party Advisory |
30 Nov 2022, 18:46
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.8 |
27 Aug 2022, 02:31
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:* cpe:2.3:a:redhat:openshift_container_platform:4.9:*:*:*:*:*:*:* cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:* cpe:2.3:a:redhat:single_sign-on:7.5.0:*:*:*:*:*:*:* cpe:2.3:a:redhat:openshift_container_platform:4.8:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.1 |
| CWE | CWE-287 | |
| References | (MISC) https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v - Third Party Advisory | |
| References | (MISC) https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d - Patch, Third Party Advisory | |
| References | (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2007512 - Issue Tracking, Vendor Advisory | |
| References | (MISC) https://access.redhat.com/security/cve/CVE-2021-3827 - Vendor Advisory |
23 Aug 2022, 17:04
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2022-08-23 16:15
Updated : 2024-11-21 06:22
NVD link : CVE-2021-3827
Mitre link : CVE-2021-3827
CVE.ORG link : CVE-2021-3827
JSON object : View
Products Affected
redhat
- openshift_container_platform
- keycloak
- enterprise_linux
- single_sign-on
CWE
CWE-287
Improper Authentication