CVE-2019-18393: Parent Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-59h8-h34r-q9cv
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CVSS 5.3
CWE-22
Published
Advisory Summary

CVE-2019-18393 is a MODERATE (CVSS 5.3) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Parent libraries in the Maven ecosystem. The issue involves ignite realtime openfire directory traversal vulnerability. Remediation is available by upgrading affected packages to version 4.5.0-beta.

CVE-2019-18393 at a Glance

CVE Identifier CVE-2019-18393
GHSA Identifier GHSA-59h8-h34r-q9cv
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Parent
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L/I:N/A:N).

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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2019-18393

To remediate this vulnerability, upgrade all affected 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.igniterealtime.openfire:parent fixed: 4.5.0-beta 
<dependency>
    <groupId>org.igniterealtime.openfire</groupId>
    <artifactId>parent</artifactId>
    <version>4.5.0-beta</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.igniterealtime.openfire

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-18393, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.igniterealtime.openfire

Analyze the terminal output to locate any version of Parent in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.5.0-beta), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.igniterealtime.openfire 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In 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

PluginServlet.java in Ignite Realtime Openfire through 4.4.2 does not ensure that retrieved files are located under the Openfire home directory, aka a directory traversal vulnerability. Version 4.5.0-beta contains a fix for the issue.

CVE-2019-18393 Affected Parent Versions

1 component(s)
Fixed Versions:
4.5.0-beta
Product / Package Ecosystem Affected Versions Fixed Version
org.igniterealtime.openfire:parent
maven/org.igniterealtime.openfire/parent
Maven
< 4.5.0-beta
4.5.0-beta

References

NVD — CVE-2019-18393 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-18393
Parent Source Repository REPOSITORY
https://github.com/igniterealtime/Openfire/pull/1498
Security Fix Commit FIX COMMIT
https://github.com/igniterealtime/Openfire/commit/cb900749d4e836b32cc6e2cc41cda17f252b977d
Parent Security Information SECURITY
https://swarm.ptsecurity.com/openfire-admin-console

Frequently Asked Questions

What is CVE-2019-18393?
CVE-2019-18393 is a security vulnerability in Parent involving Ignite Realtime Openfire directory traversal vulnerability under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Parent versions are affected?
Affected versions include releases prior to 4.5.0-beta across affected packages: org.igniterealtime.openfire:parent.
What version fixes CVE-2019-18393?
Upgrading to 4.5.0-beta (or the latest patched release for your respective branch) resolves the vulnerability.
Is parent affected?
Yes, org.igniterealtime.openfire:parent is affected in releases prior to 4.5.0-beta. Upgrade your dependency to 4.5.0-beta or later.
What is the CVSS score of CVE-2019-18393?
CVE-2019-18393 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2019-18393?
CVE-2019-18393 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Maven dependencies for CVE-2019-18393?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.igniterealtime.openfire'. 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-59h8-h34r-q9cv",
  "modified" : "2022-11-22T19:22:34Z",
  "published" : "2022-05-24T16:59:50Z",
  "aliases" : [ "CVE-2019-18393" ],
  "summary" : "Ignite Realtime Openfire directory traversal vulnerability",
  "details" : "PluginServlet.java in Ignite Realtime Openfire through 4.4.2 does not ensure that retrieved files are located under the Openfire home directory, aka a directory traversal vulnerability. Version 4.5.0-beta contains a fix for the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.igniterealtime.openfire:parent"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.5.0-beta"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-18393"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/igniterealtime/Openfire/pull/1498"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/igniterealtime/Openfire/commit/cb900749d4e836b32cc6e2cc41cda17f252b977d"
  }, {
    "type" : "WEB",
    "url" : "https://swarm.ptsecurity.com/openfire-admin-console"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-11-22T19:22:34Z",
    "nvd_published_at" : "2019-10-24T11:15:00Z"
  }
}