CVE-2020-1725: Keycloak parent Incorrect Authorization Vulnerability

MODERATE
Advisory Identifier: GHSA-p225-pc2x-4jpm
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CVSS 5.4
CWE-668 CWE-863
Published
Advisory Summary

CVE-2020-1725 is a MODERATE (CVSS 5.4) incorrect authorization vulnerability (CWE-668: Exposure of Resource to Wrong Sphere) affecting Keycloak parent libraries in the Maven ecosystem. The issue involves incorrect authorization in keycloak. Remediation is available by upgrading affected packages to version 13.0.0.

CVE-2020-1725 at a Glance

CVE Identifier CVE-2020-1725
GHSA Identifier GHSA-p225-pc2x-4jpm
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-668: Exposure of Resource to Wrong Sphere
Affected Product Keycloak parent
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.4

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:L/I:L/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 Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-1725

To remediate this vulnerability, upgrade all affected Keycloak parent 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-parent fixed: 13.0.0 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-parent</artifactId>
    <version>13.0.0</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-2020-1725, 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 parent in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 13.0.0), 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-668: Exposure of Resource to Wrong Sphere, where the product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. In Keycloak parent, 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 before version 13.0.0. In some scenarios a user still has access to a resource after changing the role mappings in Keycloak and after expiration of the previous access token.

CVE-2020-1725 Affected Keycloak parent Versions

1 component(s)
Fixed Versions:
13.0.0
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-parent
maven/org.keycloak/keycloak-parent
Maven
< 13.0.0
13.0.0

References

NVD — CVE-2020-1725 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-1725
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1765129
issues.redhat.com/browse/keycloak-165... WEB
https://issues.redhat.com/browse/KEYCLOAK-16550

Frequently Asked Questions

What is CVE-2020-1725?
CVE-2020-1725 is a security vulnerability in Keycloak parent involving Incorrect Authorization in keycloak under CWE-668: Exposure of Resource to Wrong Sphere.
Which Keycloak parent versions are affected?
Affected versions include releases prior to 13.0.0 across affected packages: org.keycloak:keycloak-parent.
What version fixes CVE-2020-1725?
Upgrading to 13.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-parent affected?
Yes, org.keycloak:keycloak-parent is affected in releases prior to 13.0.0. Upgrade your dependency to 13.0.0 or later.
What is the CVSS score of CVE-2020-1725?
CVE-2020-1725 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2020-1725?
CVE-2020-1725 is classified under CWE-668: Exposure of Resource to Wrong Sphere (The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.).
How can I check Maven dependencies for CVE-2020-1725?
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-p225-pc2x-4jpm",
  "modified" : "2021-04-01T19:38:17Z",
  "published" : "2022-02-09T00:58:52Z",
  "aliases" : [ "CVE-2020-1725" ],
  "summary" : "Incorrect Authorization in keycloak",
  "details" : "A flaw was found in keycloak before version 13.0.0. In some scenarios a user still has access to a resource after changing the role mappings in Keycloak and after expiration of the previous access token.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-parent"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "13.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-1725"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1765129"
  }, {
    "type" : "WEB",
    "url" : "https://issues.redhat.com/browse/KEYCLOAK-16550"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-668", "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-04-01T19:38:17Z",
    "nvd_published_at" : "2021-01-28T20:15:00Z"
  }
}