Executive Summary

Informations
Name CVE-2021-3827 First vendor Publication 2022-08-23
Vendor Cve Last vendor Modification 2022-11-30

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Overall CVSS Score 6.8
Base Score 6.8 Environmental Score 6.8
impact SubScore 5.2 Temporal Score 6.8
Exploitabality Sub Score 1.6
 
Attack Vector Network Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3827

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-287 Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 16
Application 1

Sources (Detail)

Source Url
MISC https://access.redhat.com/security/cve/CVE-2021-3827
https://bugzilla.redhat.com/show_bug.cgi?id=2007512
https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d1...
https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v

Alert History

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0
1
2
Date Informations
2022-11-30 21:27:21
  • Multiple Updates
2022-08-27 09:27:13
  • Multiple Updates
2022-08-23 21:27:12
  • First insertion