CVE-2018-12432: Javamelody core Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-g66q-grxc-64j3
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2018-12432 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Javamelody core libraries in the Maven ecosystem. The issue involves cross-site scripting in javamelody. Remediation is available by upgrading affected packages to version 1.61.0.

CVE-2018-12432 at a Glance

CVE Identifier CVE-2018-12432
GHSA Identifier GHSA-g66q-grxc-64j3
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Javamelody 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-2018-12432

To remediate this vulnerability, upgrade all affected Javamelody 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.

net.bull.javamelody:javamelody-core fixed: 1.61.0 
<dependency>
    <groupId>net.bull.javamelody</groupId>
    <artifactId>javamelody-core</artifactId>
    <version>1.61.0</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=net.bull.javamelody

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-12432, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=net.bull.javamelody

Analyze the terminal output to locate any version of Javamelody core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.61.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=net.bull.javamelody 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 Javamelody 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

JavaMelody through 1.60.0 has XSS via the counter parameter in a clear_counter action to the /monitoring URI.

CVE-2018-12432 Affected Javamelody core Versions

1 component(s)
Fixed Versions:
1.61.0
Product / Package Ecosystem Affected Versions Fixed Version
net.bull.javamelody:javamelody-core
maven/net.bull.javamelody/javamelody-core
Maven
< 1.61.0
1.61.0

References

NVD — CVE-2018-12432 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-12432
Security Fix Commit FIX COMMIT
https://github.com/javamelody/javamelody/commit/e0497c1980acebd257d3da78dfde29ae9bdffdf6
GitHub Advisory / Wiki ADVISORY
https://github.com/Hurdano/JavaMelody-XSS/wiki/Attack-Vector---JavaMelody

Frequently Asked Questions

What is CVE-2018-12432?
CVE-2018-12432 is a security vulnerability in Javamelody core involving Cross-site Scripting in JavaMelody under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Javamelody core versions are affected?
Affected versions include releases prior to 1.61.0 across affected packages: net.bull.javamelody:javamelody-core.
What version fixes CVE-2018-12432?
Upgrading to 1.61.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is javamelody-core affected?
Yes, net.bull.javamelody:javamelody-core is affected in releases prior to 1.61.0. Upgrade your dependency to 1.61.0 or later.
What is the CVSS score of CVE-2018-12432?
CVE-2018-12432 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-2018-12432?
CVE-2018-12432 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-2018-12432?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=net.bull.javamelody'. 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-g66q-grxc-64j3",
  "modified" : "2022-06-29T22:50:12Z",
  "published" : "2022-05-14T03:10:57Z",
  "aliases" : [ "CVE-2018-12432" ],
  "summary" : "Cross-site Scripting in JavaMelody",
  "details" : "JavaMelody through 1.60.0 has XSS via the counter parameter in a clear_counter action to the /monitoring URI.",
  "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" : "net.bull.javamelody:javamelody-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.61.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.60.0"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-12432"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/javamelody/javamelody/commit/e0497c1980acebd257d3da78dfde29ae9bdffdf6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Hurdano/JavaMelody-XSS/wiki/Attack-Vector---JavaMelody"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-29T22:50:12Z",
    "nvd_published_at" : "2018-06-14T23:29:00Z"
  }
}