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nvd[email protected]NVD:CVE-2021-3827
HistoryAug 23, 2022 - 4:15 p.m.

CVE-2021-3827

2022-08-2316:15:10
CWE-287
web.nvd.nist.gov

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

0.002 Low

EPSS

Percentile

52.2%

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 configurations

NVD
Node
redhatkeycloakRange<18.0.0
OR
redhatsingle_sign-onMatch7.0
Node
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0-
AND
redhatsingle_sign-onMatch7.5.0
Node
redhatenterprise_linuxMatch8.0
AND
redhatopenshift_container_platformMatch4.8
OR
redhatopenshift_container_platformMatch4.9

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

0.002 Low

EPSS

Percentile

52.2%