CVE-2023-2585: Keycloak services Client Spoofing Within The Keycloak Vulnerability

LOW
Advisory Identifier: GHSA-f5h4-wmp5-xhg6
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CVSS 3.5
CWE-358
Published
Advisory Summary

CVE-2023-2585 is a LOW (CVSS 3.5) client spoofing within the keycloak vulnerability (CWE-358: Improperly Implemented Security Check for Standard) affecting Keycloak services libraries in the Maven ecosystem. The issue involves client spoofing within the keycloak device authorisation grant. Remediation is available by upgrading affected packages to version 21.1.2.

CVE-2023-2585 at a Glance

CVE Identifier CVE-2023-2585
GHSA Identifier GHSA-f5h4-wmp5-xhg6
Severity LOW
CVSS v3.1 Base Score 3.5
CWE Classification CWE-358: Improperly Implemented Security Check for Standard
Affected Product Keycloak services
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.5

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

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

How to Fix CVE-2023-2585

To remediate this vulnerability, upgrade all affected Keycloak services 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-services fixed: 21.1.2 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-services</artifactId>
    <version>21.1.2</version>
</dependency>
org.keycloak:keycloak-server-spi-private fixed: 21.1.2 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-server-spi-private</artifactId>
    <version>21.1.2</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-2023-2585, 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 services in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 21.1.2), 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-358: Improperly Implemented Security Check for Standard, where the product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. In Keycloak services, 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

Under certain pre-conditions the vulnerability allows an attacker to spoof parts of the device flow and use a device_code to retrieve an access token for other OAuth clients.

CVE-2023-2585 Affected Keycloak services Versions

2 component(s)
Fixed Versions:
21.1.2
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-services
maven/org.keycloak/keycloak-services
Maven
< 21.1.2
21.1.2
org.keycloak:keycloak-server-spi-private
maven/org.keycloak/keycloak-server-spi-private
Maven
< 21.1.2
21.1.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/keycloak/keycloak/security/advisories/GHSA-f5h4-wmp5-xhg6
NVD — CVE-2023-2585 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-2585
Security Fix Commit FIX COMMIT
https://github.com/keycloak/keycloak/commit/04e6244c387a1bde86184635a0049537611e3915
access.redhat.com/errata/rhsa-2023:38... WEB
https://access.redhat.com/errata/RHSA-2023:3883
access.redhat.com/errata/rhsa-2023:38... WEB
https://access.redhat.com/errata/RHSA-2023:3884
access.redhat.com/errata/rhsa-2023:38... WEB
https://access.redhat.com/errata/RHSA-2023:3885
access.redhat.com/errata/rhsa-2023:38... WEB
https://access.redhat.com/errata/RHSA-2023:3888
access.redhat.com/errata/rhsa-2023:38... WEB
https://access.redhat.com/errata/RHSA-2023:3892
Keycloak services Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2023-2585
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2196335
Keycloak services Source Repository REPOSITORY
https://github.com/keycloak/keycloak

Frequently Asked Questions

What is CVE-2023-2585?
CVE-2023-2585 is a security vulnerability in Keycloak services involving Client Spoofing within the Keycloak Device Authorisation Grant under CWE-358: Improperly Implemented Security Check for Standard.
Which Keycloak services versions are affected?
Affected versions include releases prior to 21.1.2 across affected packages: org.keycloak:keycloak-services, org.keycloak:keycloak-server-spi-private.
What version fixes CVE-2023-2585?
Upgrading to 21.1.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-services affected?
Yes, org.keycloak:keycloak-services is affected in releases prior to 21.1.2. Upgrade your dependency to 21.1.2 or later.
Is keycloak-server-spi-private affected?
Yes, org.keycloak:keycloak-server-spi-private is affected in releases prior to 21.1.2. Upgrade your dependency to 21.1.2 or later.
What is the CVSS score of CVE-2023-2585?
CVE-2023-2585 has a CVSS v3.1 base score of 3.5 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2023-2585?
CVE-2023-2585 is classified under CWE-358: Improperly Implemented Security Check for Standard (The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.).
How can I check Maven dependencies for CVE-2023-2585?
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-f5h4-wmp5-xhg6",
  "modified" : "2023-12-21T16:40:05Z",
  "published" : "2023-06-30T20:29:25Z",
  "aliases" : [ "CVE-2023-2585" ],
  "summary" : "Client Spoofing within the Keycloak Device Authorisation Grant",
  "details" : "Under certain pre-conditions the vulnerability allows an attacker to spoof parts of the device flow and use a device_code to retrieve an access token for other OAuth clients.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-services"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "21.1.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-server-spi-private"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "21.1.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/security/advisories/GHSA-f5h4-wmp5-xhg6"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-2585"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/commit/04e6244c387a1bde86184635a0049537611e3915"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2023:3883"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2023:3884"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2023:3885"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2023:3888"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2023:3892"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2023-2585"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2196335"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-358" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-30T20:29:25Z",
    "nvd_published_at" : "2023-12-21T10:15:34Z"
  }
}