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Duplicate Advisory: Keycloak allows impersonation and lockout due to email trust not being handled correctly

Moderate severity GitHub Reviewed Published Jan 13, 2023 to the GitHub Advisory Database • Updated Jul 18, 2023
Withdrawn This advisory was withdrawn on Jul 18, 2023

Package

maven org.keycloak:keycloak-core (Maven)

Affected versions

<= 20.0.2

Patched versions

None

Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-c7xw-p58w-h6fj. This link is maintained to preserve external references.

Original Description

A flaw was found in Keycloak. This flaw allows impersonation and lockout due to the email trust not being handled correctly in Keycloak. An attacker can shadow other users with the same email and lockout or impersonate them.

References

Published by the National Vulnerability Database Jan 13, 2023
Published to the GitHub Advisory Database Jan 13, 2023
Reviewed Jan 13, 2023
Withdrawn Jul 18, 2023
Last updated Jul 18, 2023

Severity

Moderate

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
None
Integrity
Low
Availability
Low

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

Weaknesses

CVE ID

No known CVE

GHSA ID

GHSA-vhvq-jh34-3fc8

Source code

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