CVE-2018-14658: Keycloak core Keycloak Open Redirect Vulnerability

MODERATE
Advisory Identifier: GHSA-3qh2-mccc-q5m6
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2018-14658 is a MODERATE (CVSS 6.1) keycloak open redirect vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Keycloak core libraries in the Maven ecosystem. The issue involves keycloak open redirect. Remediation is available in the latest vendor maintenance releases.

CVE-2018-14658 at a Glance

CVE Identifier CVE-2018-14658
GHSA Identifier GHSA-3qh2-mccc-q5m6
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Keycloak core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2018-14658

To remediate this vulnerability, upgrade all affected Keycloak core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.keycloak:keycloak-core fixed: Latest secure release 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-core</artifactId>
    <version>Latest secure release</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.keycloak

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-14658, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.keycloak

Analyze the terminal output to locate any version of Keycloak core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.keycloak command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Keycloak core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A flaw was found in JBOSS Keycloak 3.2.1.Final. The Redirect URL for both Login and Logout are not normalized in `org.keycloak.protocol.oidc.utils.RedirectUtils` before the redirect url is verified. This can lead to an Open Redirection attack

CVE-2018-14658 Affected Keycloak core Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-core
maven/org.keycloak/keycloak-core
Maven
≤ 3.2.1.Final

References

NVD — CVE-2018-14658 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14658
access.redhat.com/errata/rhsa-2018:35... WEB
https://access.redhat.com/errata/RHSA-2018:3592
access.redhat.com/errata/rhsa-2018:35... WEB
https://access.redhat.com/errata/RHSA-2018:3593
access.redhat.com/errata/rhsa-2018:35... WEB
https://access.redhat.com/errata/RHSA-2018:3595
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14658

Frequently Asked Questions

What is CVE-2018-14658?
CVE-2018-14658 is a security vulnerability in Keycloak core involving Keycloak Open Redirect under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Keycloak core versions are affected?
Affected versions include releases prior to current release patches across affected packages: org.keycloak:keycloak-core.
What version fixes CVE-2018-14658?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-core affected?
Yes, org.keycloak:keycloak-core is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2018-14658?
CVE-2018-14658 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2018-14658?
CVE-2018-14658 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check Maven dependencies for CVE-2018-14658?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.keycloak'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3qh2-mccc-q5m6",
  "modified" : "2023-07-21T22:48:34Z",
  "published" : "2022-05-13T01:34:29Z",
  "aliases" : [ "CVE-2018-14658" ],
  "summary" : "Keycloak Open Redirect",
  "details" : "A flaw was found in JBOSS Keycloak 3.2.1.Final. The Redirect URL for both Login and Logout are not normalized in `org.keycloak.protocol.oidc.utils.RedirectUtils` before the redirect url is verified. This can lead to an Open Redirection attack",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.2.1.Final"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-14658"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:3592"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:3593"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:3595"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14658"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-21T22:48:34Z",
    "nvd_published_at" : "2018-11-13T19:29:00Z"
  }
}