CVE-2019-9194: Studio 42/elfinder ElFinder Command Injection Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-4223-qj94-7x9p
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CVSS 9.8
CWE-78
Published
Advisory Summary

CVE-2019-9194 is a CRITICAL (CVSS 9.8) elfinder command injection vulnerability vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Studio 42/elfinder libraries in the Packagist ecosystem. The issue involves elfinder command injection vulnerability in the php connector. Remediation is available by upgrading affected packages to version 2.1.48.

CVE-2019-9194 at a Glance

CVE Identifier CVE-2019-9194
GHSA Identifier GHSA-4223-qj94-7x9p
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product Studio 42/elfinder
Package Ecosystem Packagist
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:3.0/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-2019-9194

To remediate this vulnerability, upgrade all affected Studio 42/elfinder dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

studio-42/elfinder fixed: 2.1.48 
Upgrade studio-42/elfinder to 2.1.48
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for studio-42/elfinder

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-9194, inspect your project dependencies for Studio 42/elfinder:

inspect dependencies for studio-42/elfinder

Analyze the terminal output to locate any version of Studio 42/elfinder in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.48), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. In Studio 42/elfinder, 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

elFinder before 2.1.48 has a command injection vulnerability in the PHP connector.

CVE-2019-9194 Affected Studio 42/elfinder Versions

1 component(s)
Fixed Versions:
2.1.48
Product / Package Ecosystem Affected Versions Fixed Version
studio-42/elfinder
 Packagist
< 2.1.48
2.1.48

References

NVD — CVE-2019-9194 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-9194
Security Fix Commit FIX COMMIT
https://github.com/Studio-42/elFinder/commit/374c88d7030eb92749267e17a4af21cc7520efa5
Studio 42/elfinder Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/studio-42/elfinder/CVE-2019-9194.yaml
Studio 42/elfinder Source Repository REPOSITORY
https://github.com/Studio-42/elFinder
Studio 42/elfinder Source Repository REPOSITORY
https://github.com/Studio-42/elFinder/blob/master/README.md
Studio 42/elfinder Source Repository REPOSITORY
https://github.com/Studio-42/elFinder/compare/6884c4f...0740028
Studio 42/elfinder Release RELEASE
https://github.com/Studio-42/elFinder/releases/tag/2.1.48
www.exploit-db.com/exploits/46481 WEB
https://www.exploit-db.com/exploits/46481
www.exploit-db.com/exploits/46539 WEB
https://www.exploit-db.com/exploits/46539

Frequently Asked Questions

What is CVE-2019-9194?
CVE-2019-9194 is a security vulnerability in Studio 42/elfinder involving elFinder command injection vulnerability in the PHP connector under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Studio 42/elfinder versions are affected?
Affected versions include releases prior to 2.1.48 across affected packages: studio-42/elfinder.
What version fixes CVE-2019-9194?
Upgrading to 2.1.48 (or the latest patched release for your respective branch) resolves the vulnerability.
Is studio-42/elfinder affected?
Yes, studio-42/elfinder is affected in releases prior to 2.1.48. Upgrade your dependency to 2.1.48 or later.
What is the CVSS score of CVE-2019-9194?
CVE-2019-9194 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-9194?
CVE-2019-9194 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).
How can I check Packagist dependencies for CVE-2019-9194?
Run the dependency tree command: 'inspect dependencies for studio-42/elfinder'. 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-4223-qj94-7x9p",
  "modified" : "2024-01-10T19:05:33Z",
  "published" : "2022-05-13T01:23:02Z",
  "aliases" : [ "CVE-2019-9194" ],
  "summary" : "elFinder command injection vulnerability in the PHP connector",
  "details" : "elFinder before 2.1.48 has a command injection vulnerability in the PHP connector.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "studio-42/elfinder"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.1.48"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-9194"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Studio-42/elFinder/commit/374c88d7030eb92749267e17a4af21cc7520efa5"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/studio-42/elfinder/CVE-2019-9194.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Studio-42/elFinder"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Studio-42/elFinder/blob/master/README.md"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Studio-42/elFinder/compare/6884c4f...0740028"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Studio-42/elFinder/releases/tag/2.1.48"
  }, {
    "type" : "WEB",
    "url" : "https://www.exploit-db.com/exploits/46481"
  }, {
    "type" : "WEB",
    "url" : "https://www.exploit-db.com/exploits/46539"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-10T19:05:33Z",
    "nvd_published_at" : "2019-02-26T19:29:00Z"
  }
}