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keycloak vulnerable to unauthorized login via mail server setup

Critical severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Nov 6, 2023

Package

maven org.keycloak:keycloak-core (Maven)

Affected versions

< 8.0.0

Patched versions

8.0.0

Description

A flaw was found in keycloack before version 8.0.0. The owner of 'placeholder.org' domain can setup mail server on this domain and knowing only name of a client can reset password and then log in. For example, for client name 'test' the email address will be '[email protected]'.

References

Published by the National Vulnerability Database Jan 7, 2020
Published to the GitHub Advisory Database May 24, 2022
Reviewed Sep 12, 2022
Last updated Nov 6, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS score

0.237%
(62nd percentile)

Weaknesses

CVE ID

CVE-2019-14837

GHSA ID

GHSA-cf8f-w2c5-p5jr

Source code

Credits

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