CVE-2023-39013: Duke Code Injection Vulnerability

CRITICAL
Advisory Identifier: GHSA-p83q-99rc-vfmv
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CVSS 9.8
CWE-94 CWE-74
Published
Advisory Summary

CVE-2023-39013 is a CRITICAL (CVSS 9.8) code injection vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Duke libraries in the Maven ecosystem. The issue involves code injection in duke. Remediation is available in the latest vendor maintenance releases.

CVE-2023-39013 at a Glance

CVE Identifier CVE-2023-39013
GHSA Identifier GHSA-p83q-99rc-vfmv
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Duke
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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

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

How to Fix CVE-2023-39013

To remediate this vulnerability, upgrade all affected Duke dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

no.priv.garshol.duke:duke fixed: Latest secure release 
<dependency>
    <groupId>no.priv.garshol.duke</groupId>
    <artifactId>duke</artifactId>
    <version>Latest secure release</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=no.priv.garshol.duke

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-39013, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=no.priv.garshol.duke

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

Note: The mvn dependency:tree -Dincludes=no.priv.garshol.duke 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-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Duke, 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

Duke v1.2 and below was discovered to contain a code injection vulnerability via the component no.priv.garshol.duke.server.CommonJTimer.init.

CVE-2023-39013 Affected Duke Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
no.priv.garshol.duke:duke
maven/no.priv.garshol.duke/duke
Maven
≤ 1.2

References

NVD — CVE-2023-39013 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-39013
Duke Source Repository REPOSITORY
https://github.com/larsga/Duke/issues/273
Duke Source Repository REPOSITORY
https://github.com/larsga/Duke

Frequently Asked Questions

What is CVE-2023-39013?
CVE-2023-39013 is a security vulnerability in Duke involving Code injection in Duke under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Duke versions are affected?
Affected versions include releases prior to current release patches across affected packages: no.priv.garshol.duke:duke.
What version fixes CVE-2023-39013?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is duke affected?
Yes, no.priv.garshol.duke:duke is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-39013?
CVE-2023-39013 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-39013?
CVE-2023-39013 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check Maven dependencies for CVE-2023-39013?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=no.priv.garshol.duke'. 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-p83q-99rc-vfmv",
  "modified" : "2023-08-03T19:37:47Z",
  "published" : "2023-07-28T15:30:23Z",
  "aliases" : [ "CVE-2023-39013" ],
  "summary" : "Code injection in Duke",
  "details" : "Duke v1.2 and below was discovered to contain a code injection vulnerability via the component no.priv.garshol.duke.server.CommonJTimer.init.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "no.priv.garshol.duke:duke"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-39013"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/larsga/Duke/issues/273"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/larsga/Duke"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74", "CWE-94" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-28T20:56:32Z",
    "nvd_published_at" : "2023-07-28T15:15:12Z"
  }
}