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Vulnerability Details :

CVE-2021-3827

Summary
Assigner-redhat
Assigner Org ID-53f830b8-0a3f-465b-8143-3b8a9948e749
Published At-23 Aug, 2022 | 15:52
Updated At-03 Aug, 2024 | 17:09
Rejected At-
Credits

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:redhat
Assigner Org ID:53f830b8-0a3f-465b-8143-3b8a9948e749
Published At:23 Aug, 2022 | 15:52
Updated At:03 Aug, 2024 | 17:09
Rejected At:
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
n/a
Product
keycloak
Versions
Affected
  • Fixed in v18.0.0
Problem Types
TypeCWE IDDescription
CWECWE-287CWE-287 - Improper Authentication
Type: CWE
CWE ID: CWE-287
Description: CWE-287 - Improper Authentication
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v
x_refsource_MISC
https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d
x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=2007512
x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2021-3827
x_refsource_MISC
Hyperlink: https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v
Resource:
x_refsource_MISC
Hyperlink: https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d
Resource:
x_refsource_MISC
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2007512
Resource:
x_refsource_MISC
Hyperlink: https://access.redhat.com/security/cve/CVE-2021-3827
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v
x_refsource_MISC
x_transferred
https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d
x_refsource_MISC
x_transferred
https://bugzilla.redhat.com/show_bug.cgi?id=2007512
x_refsource_MISC
x_transferred
https://access.redhat.com/security/cve/CVE-2021-3827
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2007512
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://access.redhat.com/security/cve/CVE-2021-3827
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:secalert@redhat.com
Published At:23 Aug, 2022 | 16:15
Updated At:30 Nov, 2022 | 18:46

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.16.8MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Type: Primary
Version: 3.1
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CPE Matches
Red Hat, Inc.
redhat
>>keycloak>>Versions before 18.0.0(exclusive)
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>single_sign-on>>7.0
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>enterprise_linux>>7.0
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>enterprise_linux>>8.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
Red Hat, Inc.
redhat
>>single_sign-on>>7.5.0
cpe:2.3:a:redhat:single_sign-on:7.5.0:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>enterprise_linux>>8.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>openshift_container_platform>>4.8
cpe:2.3:a:redhat:openshift_container_platform:4.8:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>openshift_container_platform>>4.9
cpe:2.3:a:redhat:openshift_container_platform:4.9:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-287Primarynvd@nist.gov
CWE-287Secondarysecalert@redhat.com
CWE ID: CWE-287
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-287
Type: Secondary
Source: secalert@redhat.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://access.redhat.com/security/cve/CVE-2021-3827secalert@redhat.com
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2007512secalert@redhat.com
Issue Tracking
Vendor Advisory
https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0dsecalert@redhat.com
Patch
Third Party Advisory
https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3vsecalert@redhat.com
Third Party Advisory
Hyperlink: https://access.redhat.com/security/cve/CVE-2021-3827
Source: secalert@redhat.com
Resource:
Vendor Advisory
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2007512
Source: secalert@redhat.com
Resource:
Issue Tracking
Vendor Advisory
Hyperlink: https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d
Source: secalert@redhat.com
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v
Source: secalert@redhat.com
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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