CVE-2019-10309: Swarm Jenkins Self-Organizing Swarm Plug-in Modules Vulnerability

MODERATE
Advisory Identifier: GHSA-w898-3ph8-5pgm
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CVSS 6.1
CWE-611
Published
Advisory Summary

CVE-2019-10309 is a MODERATE (CVSS 6.1) jenkins self-organizing swarm plug-in modules vulnerability (CWE-611: Improper Restriction of XML External Entity Reference) affecting Swarm libraries in the Maven ecosystem. The issue involves jenkins self-organizing swarm plug-in modules plugin xxe vulnerability via udp broadcast response. Remediation is available in the latest vendor maintenance releases.

CVE-2019-10309 at a Glance

CVE Identifier CVE-2019-10309
GHSA Identifier GHSA-w898-3ph8-5pgm
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-611: Improper Restriction of XML External Entity Reference
Affected Product Swarm
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:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2019-10309

To remediate this vulnerability, upgrade all affected Swarm 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:swarm fixed: Latest secure release 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>swarm</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=org.jenkins-ci.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-10309, 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 Swarm 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=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-611: Improper Restriction of XML External Entity Reference, where the product processes an xml document that can contain xml entities with uris that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. In Swarm, 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

Jenkins Swarm Plugin allows clients to auto-discover Jenkins instances on the same network through a UDP discovery request. Responses to this request are XML documents. Swarm Plugin does not configure the XML parser in a way that would prevent XML External Entity (XXE) processing. This allows unauthenticated attackers on the same network to have Swarm clients parse a maliciously crafted XML response that uses external entities to read arbitrary files from the Swarm client or denial-of-service attacks. As of publication of this advisory, there is no fix.

CVE-2019-10309 Affected Swarm Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:swarm
maven/org.jenkins-ci.plugins/swarm
Maven
≤ 3.15

References

NVD — CVE-2019-10309 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10309
Swarm Security Information SECURITY
https://jenkins.io/security/advisory/2019-04-30/#SECURITY-1252
Swarm Security Information SECURITY
https://web.archive.org/web/20200227073756/http://www.securityfocus.com/bid/108159
www.talosintelligence.com/vulnerability_repor... WEB
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0783
Swarm Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/04/30/5

Frequently Asked Questions

What is CVE-2019-10309?
CVE-2019-10309 is a security vulnerability in Swarm involving Jenkins Self-Organizing Swarm Plug-in Modules Plugin XXE vulnerability via UDP broadcast response under CWE-611: Improper Restriction of XML External Entity Reference.
Which Swarm versions are affected?
Affected versions include releases prior to current release patches across affected packages: org.jenkins-ci.plugins:swarm.
What version fixes CVE-2019-10309?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is swarm affected?
Yes, org.jenkins-ci.plugins:swarm 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-2019-10309?
CVE-2019-10309 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L.
What CWE is associated with CVE-2019-10309?
CVE-2019-10309 is classified under CWE-611: Improper Restriction of XML External Entity Reference (The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.).
How can I check Maven dependencies for CVE-2019-10309?
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-w898-3ph8-5pgm",
  "modified" : "2023-10-26T21:42:04Z",
  "published" : "2022-05-24T16:44:54Z",
  "aliases" : [ "CVE-2019-10309" ],
  "summary" : "Jenkins Self-Organizing Swarm Plug-in Modules Plugin XXE vulnerability via UDP broadcast response",
  "details" : "Jenkins Swarm Plugin allows clients to auto-discover Jenkins instances on the same network through a UDP discovery request. Responses to this request are XML documents.\n\nSwarm Plugin does not configure the XML parser in a way that would prevent XML External Entity (XXE) processing. This allows unauthenticated attackers on the same network to have Swarm clients parse a maliciously crafted XML response that uses external entities to read arbitrary files from the Swarm client or denial-of-service attacks.\n\nAs of publication of this advisory, there is no fix.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:swarm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.15"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10309"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2019-04-30/#SECURITY-1252"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20200227073756/http://www.securityfocus.com/bid/108159"
  }, {
    "type" : "WEB",
    "url" : "https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0783"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2019/04/30/5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-611" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-26T21:42:04Z",
    "nvd_published_at" : "2019-04-30T13:29:00Z"
  }
}