CVE-2019-16539: Support core Missing Permission Check Vulnerability

MODERATE
Advisory Identifier: GHSA-j52r-pmqv-wm38
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CVSS 6.5
CWE-281
Published
Advisory Summary

CVE-2019-16539 is a MODERATE (CVSS 6.5) missing permission check vulnerability (CWE-281: Improper Preservation of Permissions) affecting Support core libraries in the Maven ecosystem. The issue involves missing permission check in jenkins support core plugin. Remediation is available by upgrading affected packages to version 2.64.

CVE-2019-16539 at a Glance

CVE Identifier CVE-2019-16539
GHSA Identifier GHSA-j52r-pmqv-wm38
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-281: Improper Preservation of Permissions
Affected Product Support core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:N/I:H/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 None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2019-16539

To remediate this vulnerability, upgrade all affected Support 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.

org.jenkins-ci.plugins:support-core fixed: 2.64 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>support-core</artifactId>
    <version>2.64</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.jenkins-ci.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-16539, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

Analyze the terminal output to locate any version of Support core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.64), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.plugins 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-281: Improper Preservation of Permissions, where the product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended. In Support 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

A missing permission check in Jenkins Support Core Plugin 2.63 and earlier allows attackers with Overall/Read permission to delete support bundles.

CVE-2019-16539 Affected Support core Versions

1 component(s)
Fixed Versions:
2.64
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:support-core
maven/org.jenkins-ci.plugins/support-core
Maven
< 2.64
2.64

References

NVD — CVE-2019-16539 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-16539
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/support-core-plugin/commit/6b177ea7cc7347e13fa87174472400bbbe78d422
Support core Source Repository REPOSITORY
https://github.com/jenkinsci/support-core-plugin
Support core Security Information SECURITY
https://jenkins.io/security/advisory/2019-11-21/#SECURITY-1634
Support core Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/11/21/1

Frequently Asked Questions

What is CVE-2019-16539?
CVE-2019-16539 is a security vulnerability in Support core involving Missing permission check in Jenkins Support Core Plugin under CWE-281: Improper Preservation of Permissions.
Which Support core versions are affected?
Affected versions include releases prior to 2.64 across affected packages: org.jenkins-ci.plugins:support-core.
What version fixes CVE-2019-16539?
Upgrading to 2.64 (or the latest patched release for your respective branch) resolves the vulnerability.
Is support-core affected?
Yes, org.jenkins-ci.plugins:support-core is affected in releases prior to 2.64. Upgrade your dependency to 2.64 or later.
What is the CVSS score of CVE-2019-16539?
CVE-2019-16539 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2019-16539?
CVE-2019-16539 is classified under CWE-281: Improper Preservation of Permissions (The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.).
How can I check Maven dependencies for CVE-2019-16539?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.plugins'. 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-j52r-pmqv-wm38",
  "modified" : "2023-12-14T18:19:58Z",
  "published" : "2022-05-24T17:01:40Z",
  "aliases" : [ "CVE-2019-16539" ],
  "summary" : "Missing permission check in Jenkins Support Core Plugin",
  "details" : "A missing permission check in Jenkins Support Core Plugin 2.63 and earlier allows attackers with Overall/Read permission to delete support bundles.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:support-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.64"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.63"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-16539"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/support-core-plugin/commit/6b177ea7cc7347e13fa87174472400bbbe78d422"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/support-core-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2019-11-21/#SECURITY-1634"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2019/11/21/1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-281" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-12-14T18:19:58Z",
    "nvd_published_at" : "2019-11-21T15:15:00Z"
  }
}