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Improper Authentication in org.keycloak:keycloak-core

High severity GitHub Reviewed Published Oct 18, 2018 to the GitHub Advisory Database • Updated Jan 11, 2023

Package

maven org.keycloak:keycloak-core (Maven)

Affected versions

< 2.3.0

Patched versions

2.3.0

Description

It was found that the keycloak before 2.3.0 did not implement authentication flow correctly. An attacker could use this flaw to construct a phishing URL, from which he could hijack the user's session. This could lead to information disclosure, or permit further possible attacks.

References

Published to the GitHub Advisory Database Oct 18, 2018
Reviewed Jun 16, 2020
Last updated Jan 11, 2023

Severity

High

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
Required
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:R/S:U/C:H/I:H/A:N

EPSS score

0.263%
(67th percentile)

Weaknesses

CVE ID

CVE-2016-8609

GHSA ID

GHSA-95m6-mjh3-58gm

Source code

No known source code
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