CVE-2022-2256: Keycloak parent Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-w9mf-83w3-fv49
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CVSS 5.4
CWE-79
Published
Advisory Summary

CVE-2022-2256 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Keycloak parent libraries in the Maven ecosystem. The issue involves keycloak vulnerable to stored cross site scripting (xss) when loading default roles. Remediation is available by upgrading affected packages to version 19.0.2.

CVE-2022-2256 at a Glance

CVE Identifier CVE-2022-2256
GHSA Identifier GHSA-w9mf-83w3-fv49
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2022-2256

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: 19.0.2 
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-parent</artifactId>
    <version>19.0.2</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-2022-2256, 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 19.0.2), 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. 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 Stored XSS vulnerability was reported in the Keycloak Security mailing list, affecting all the versions of Keycloak, including the latest release (18.0.1). The vulnerability allows a privileged attacker to execute malicious scripts in the admin console, abusing of the default roles functionality. ### CVSS 3.1 - **3.8** **Vector String:** AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N **Vector Clarification:** * User interaction is not required as the admin console is regularly used during an administrator's work * The scope is unchanged since the admin console web application is both the vulnerable component and where the exploit executes ### Credits Aytaç Kalıncı, Ilker Bulgurcu, Yasin Yılmaz (@aytackalinci, @smileronin, @yasinyilmaz) - NETAŞ PENTEST TEAM

CVE-2022-2256 Affected Keycloak parent Versions

1 component(s)
Fixed Versions:
19.0.2
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-parent
maven/org.keycloak/keycloak-parent
Maven
< 19.0.2
19.0.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/keycloak/keycloak/security/advisories/GHSA-w9mf-83w3-fv49
NVD — CVE-2022-2256 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-2256
Security Fix Commit FIX COMMIT
https://github.com/keycloak/keycloak/commit/8e705a65ab2aa2b079374ec859ee7a75fad5a7d9
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2101942
Keycloak parent Source Repository REPOSITORY
https://github.com/keycloak/keycloak

Frequently Asked Questions

What is CVE-2022-2256?
CVE-2022-2256 is a security vulnerability in Keycloak parent involving Keycloak vulnerable to Stored Cross site Scripting (XSS) when loading default roles under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Keycloak parent versions are affected?
Affected versions include releases prior to 19.0.2 across affected packages: org.keycloak:keycloak-parent.
What version fixes CVE-2022-2256?
Upgrading to 19.0.2 (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 19.0.2. Upgrade your dependency to 19.0.2 or later.
What is the CVSS score of CVE-2022-2256?
CVE-2022-2256 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2022-2256?
CVE-2022-2256 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Maven dependencies for CVE-2022-2256?
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-w9mf-83w3-fv49",
  "modified" : "2022-10-18T17:19:11Z",
  "published" : "2022-09-23T16:32:51Z",
  "aliases" : [ "CVE-2022-2256" ],
  "summary" : "Keycloak vulnerable to Stored Cross site Scripting (XSS) when loading default roles",
  "details" : "A Stored XSS vulnerability was reported in the Keycloak Security mailing list, affecting all the versions of Keycloak, including the latest release (18.0.1). The vulnerability allows a privileged attacker to execute malicious scripts in the admin console, abusing of the default roles functionality. \n\n### CVSS 3.1 - **3.8**\n\n**Vector String:** AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N\n\n**Vector Clarification:**\n\n* User interaction is not required as the admin console is regularly used during an administrator's work\n* The scope is unchanged since the admin console web application is both the vulnerable component and where the exploit executes\n\n### Credits\n\nAytaç Kalıncı, Ilker Bulgurcu, Yasin Yılmaz (@aytackalinci, @smileronin, @yasinyilmaz) - NETAŞ PENTEST TEAM\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-parent"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "19.0.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/security/advisories/GHSA-w9mf-83w3-fv49"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-2256"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/commit/8e705a65ab2aa2b079374ec859ee7a75fad5a7d9"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2101942"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-23T16:32:51Z",
    "nvd_published_at" : null
  }
}