CVE-2023-50449: Jfinal Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-7x2g-4jvc-4x6p
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2023-50449 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Jfinal libraries in the Maven ecosystem. The issue involves directory traversal in jfinalcms. Remediation is available in the latest vendor maintenance releases.

CVE-2023-50449 at a Glance

CVE Identifier CVE-2023-50449
GHSA Identifier GHSA-7x2g-4jvc-4x6p
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Jfinal
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

How to Fix CVE-2023-50449

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

com.jfinal:jfinal fixed: Latest secure release 
<dependency>
    <groupId>com.jfinal</groupId>
    <artifactId>jfinal</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=com.jfinal

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-50449, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.jfinal

Analyze the terminal output to locate any version of Jfinal 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=com.jfinal 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 Jfinal, 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

JFinalCMS 5.0.0 could allow a remote attacker to read files via ../ Directory Traversal in the /common/down/file fileKey parameter.

CVE-2023-50449 Affected Jfinal Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
com.jfinal:jfinal
maven/com.jfinal/jfinal
Maven
≤ 5.0.0

References

NVD — CVE-2023-50449 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-50449
gitee.com/heyewei/jfinalcms/i... WEB
https://gitee.com/heyewei/JFinalcms/issues/I7WGC6
Jfinal Source Repository REPOSITORY
https://github.com/jfinal/jfinal

Frequently Asked Questions

What is CVE-2023-50449?
CVE-2023-50449 is a security vulnerability in Jfinal involving Directory Traversal in JFinalCMS under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Jfinal versions are affected?
Affected versions include releases prior to current release patches across affected packages: com.jfinal:jfinal.
What version fixes CVE-2023-50449?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is jfinal affected?
Yes, com.jfinal:jfinal 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-2023-50449?
CVE-2023-50449 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2023-50449?
CVE-2023-50449 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-2023-50449?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.jfinal'. 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-7x2g-4jvc-4x6p",
  "modified" : "2023-12-13T19:30:49Z",
  "published" : "2023-12-10T18:30:18Z",
  "aliases" : [ "CVE-2023-50449" ],
  "summary" : "Directory Traversal in JFinalCMS",
  "details" : "JFinalCMS 5.0.0 could allow a remote attacker to read files via ../ Directory Traversal in the /common/down/file fileKey parameter.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.jfinal:jfinal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "5.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-50449"
  }, {
    "type" : "WEB",
    "url" : "https://gitee.com/heyewei/JFinalcms/issues/I7WGC6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jfinal/jfinal"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-12-13T19:30:49Z",
    "nvd_published_at" : "2023-12-10T18:15:07Z"
  }
}