CVE-2020-14389: Keycloak core Improper Privilege Management Vulnerability

HIGH
Advisory Identifier: GHSA-c9x9-xv66-xp3v
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CVSS 8.1
CWE-269 CWE-916
Published
Advisory Summary

CVE-2020-14389 is a HIGH (CVSS 8.1) improper privilege management vulnerability (CWE-269: Improper Privilege Management) affecting Keycloak core libraries in the Maven ecosystem. The issue involves improper privilege management in keycloak. Remediation is available by upgrading affected packages to version 12.0.0.

CVE-2020-14389 at a Glance

CVE Identifier CVE-2020-14389
GHSA Identifier GHSA-c9x9-xv66-xp3v
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-269: Improper Privilege Management
Affected Product Keycloak core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

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

How to Fix CVE-2020-14389

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: 12.0.0 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-core</artifactId>
    <version>12.0.0</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-2020-14389, 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 12.0.0), 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-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. 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 Keycloak, where it would permit a user with a view-profile role to manage the resources in the new account console. This flaw allows a user with a view-profile role to access and modify data for which the user does not have adequate permission.

CVE-2020-14389 Affected Keycloak core Versions

1 component(s)
Fixed Versions:
12.0.0
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-core
maven/org.keycloak/keycloak-core
Maven
< 12.0.0
12.0.0

References

NVD — CVE-2020-14389 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14389
Keycloak core Security Information SECURITY
https://access.redhat.com/security/cve/cve-2020-14389

Frequently Asked Questions

What is CVE-2020-14389?
CVE-2020-14389 is a security vulnerability in Keycloak core involving Improper privilege management in Keycloak under CWE-269: Improper Privilege Management.
Which Keycloak core versions are affected?
Affected versions include releases prior to 12.0.0 across affected packages: org.keycloak:keycloak-core.
What version fixes CVE-2020-14389?
Upgrading to 12.0.0 (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 12.0.0. Upgrade your dependency to 12.0.0 or later.
What is the CVSS score of CVE-2020-14389?
CVE-2020-14389 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2020-14389?
CVE-2020-14389 is classified under CWE-269: Improper Privilege Management (The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.).
How can I check Maven dependencies for CVE-2020-14389?
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-c9x9-xv66-xp3v",
  "modified" : "2021-11-08T18:54:51Z",
  "published" : "2021-11-10T15:30:36Z",
  "aliases" : [ "CVE-2020-14389" ],
  "summary" : "Improper privilege management in Keycloak",
  "details" : "A flaw was found in Keycloak, where it would permit a user with a view-profile role to manage the resources in the new account console. This flaw allows a user with a view-profile role to access and modify data for which the user does not have adequate permission.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "12.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-14389"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/cve-2020-14389"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-269", "CWE-916" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-11-08T18:54:51Z",
    "nvd_published_at" : "2020-11-17T02:15:00Z"
  }
}