CVE-2021-41143: Openmage/magento lts Remote Code Execution Vulnerability

HIGH
Advisory Identifier: GHSA-5vpv-xmcj-9q85
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CVSS 7.2
CWE-22 CWE-77
Published
Advisory Summary

CVE-2021-41143 is a HIGH (CVSS 7.2) remote code execution vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Openmage/magento lts libraries in the Packagist ecosystem. The issue involves fix for arbitrary file deletion in customer media allows for remote code execution. Remediation is available by upgrading affected packages to version 19.4.22, 20.0.19.

CVE-2021-41143 at a Glance

CVE Identifier CVE-2021-41143
GHSA Identifier GHSA-5vpv-xmcj-9q85
Severity HIGH
CVSS v3.1 Base Score 7.2
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Openmage/magento lts
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
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-2021-41143

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

openmage/magento-lts fixed: 19.4.22 
Upgrade openmage/magento-lts to 19.4.22
openmage/magento-lts fixed: 20.0.19 
Upgrade openmage/magento-lts to 20.0.19
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 openmage/magento-lts

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-41143, inspect your project dependencies for Openmage/magento lts:

inspect dependencies for openmage/magento-lts

Analyze the terminal output to locate any version of Openmage/magento lts in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 19.4.22), 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-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 Openmage/magento lts, 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

### Impact Magento admin users with access to the customer media could execute code on the server.

CVE-2021-41143 Affected Openmage/magento lts Versions

2 component(s)
Fixed Versions:
19.4.2220.0.19
Product / Package Ecosystem Affected Versions Fixed Version
openmage/magento-lts
 Packagist
< 19.4.22
19.4.22
openmage/magento-lts
 Packagist
≥ 20.0.0
< 20.0.19
20.0.19

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-5vpv-xmcj-9q85
NVD — CVE-2021-41143 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41143
Security Fix Commit FIX COMMIT
https://github.com/OpenMage/magento-lts/commit/45330ff50439984e806992fa22c3f96c4d660f91
Openmage/magento lts Source Repository REPOSITORY
https://github.com/OpenMage/magento-lts
Openmage/magento lts Release RELEASE
https://github.com/OpenMage/magento-lts/releases/tag/v19.4.22
Openmage/magento lts Release RELEASE
https://github.com/OpenMage/magento-lts/releases/tag/v20.0.19

Frequently Asked Questions

What is CVE-2021-41143?
CVE-2021-41143 is a security vulnerability in Openmage/magento lts involving Fix for arbitrary file deletion in customer media allows for remote code execution under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Openmage/magento lts versions are affected?
Affected versions include releases prior to 19.4.22, 20.0.19 across affected packages: openmage/magento-lts.
What version fixes CVE-2021-41143?
Upgrading to 19.4.22, 20.0.19 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openmage/magento-lts affected?
Yes, openmage/magento-lts is affected in releases prior to 19.4.22, 20.0.19. Upgrade your dependency to 19.4.22, 20.0.19 or later.
What is the CVSS score of CVE-2021-41143?
CVE-2021-41143 has a CVSS v3.1 base score of 7.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-41143?
CVE-2021-41143 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 Packagist dependencies for CVE-2021-41143?
Run the dependency tree command: 'inspect dependencies for openmage/magento-lts'. 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-5vpv-xmcj-9q85",
  "modified" : "2023-02-07T21:19:19Z",
  "published" : "2023-01-27T00:54:59Z",
  "aliases" : [ "CVE-2021-41143" ],
  "summary" : "Fix for arbitrary file deletion in customer media allows for remote code execution",
  "details" : "### Impact\nMagento admin users with access to the customer media could execute code on the server.\n\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "openmage/magento-lts"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "19.4.22"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "openmage/magento-lts"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "20.0.0"
      }, {
        "fixed" : "20.0.19"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-5vpv-xmcj-9q85"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-41143"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/commit/45330ff50439984e806992fa22c3f96c4d660f91"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OpenMage/magento-lts"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/releases/tag/v19.4.22"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/releases/tag/v20.0.19"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22", "CWE-77" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-27T00:54:59Z",
    "nvd_published_at" : "2023-01-27T19:15:00Z"
  }
}