CVE-2020-3716: Magento/community edition Magento Deserialization Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-9wc9-498w-h8xv
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CVSS 9.8
CWE-502
Published
Advisory Summary

CVE-2020-3716 is a CRITICAL (CVSS 9.8) magento deserialization vulnerability vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Magento/community edition libraries in the Packagist ecosystem. The issue involves magento deserialization vulnerability. Remediation is available by upgrading affected packages to version 2.2.11, 2.3.4.

CVE-2020-3716 at a Glance

CVE Identifier CVE-2020-3716
GHSA Identifier GHSA-9wc9-498w-h8xv
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Magento/community edition
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:3.1/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-2020-3716

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

magento/community-edition fixed: 2.2.11 
Upgrade magento/community-edition to 2.2.11
magento/community-edition fixed: 2.3.4 
Upgrade magento/community-edition to 2.3.4
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 magento/community-edition

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-3716, inspect your project dependencies for Magento/community edition:

inspect dependencies for magento/community-edition

Analyze the terminal output to locate any version of Magento/community edition in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.11), 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-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Magento/community edition, 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

Magento versions 2.3.3 and earlier, 2.2.10 and earlier, 1.14.4.3 and earlier, and 1.9.4.3 and earlier have a deserialization of untrusted data vulnerability. Successful exploitation could lead to arbitrary code execution.

CVE-2020-3716 Affected Magento/community edition Versions

2 component(s)
Fixed Versions:
2.2.112.3.4
Product / Package Ecosystem Affected Versions Fixed Version
magento/community-edition
 Packagist
≥ 2.2.0
< 2.2.11
2.2.11
magento/community-edition
 Packagist
≥ 2.3.0
< 2.3.4
2.3.4

References

NVD — CVE-2020-3716 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3716
Magento/community edition Source Repository REPOSITORY
https://github.com/magento/magento2
Magento/community edition Security Information SECURITY
https://helpx.adobe.com/security/products/magento/apsb20-02.html

Frequently Asked Questions

What is CVE-2020-3716?
CVE-2020-3716 is a security vulnerability in Magento/community edition involving Magento deserialization vulnerability under CWE-502: Deserialization of Untrusted Data.
Which Magento/community edition versions are affected?
Affected versions include releases prior to 2.2.11, 2.3.4 across affected packages: magento/community-edition.
What version fixes CVE-2020-3716?
Upgrading to 2.2.11, 2.3.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is magento/community-edition affected?
Yes, magento/community-edition is affected in releases prior to 2.2.11, 2.3.4. Upgrade your dependency to 2.2.11, 2.3.4 or later.
What is the CVSS score of CVE-2020-3716?
CVE-2020-3716 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-3716?
CVE-2020-3716 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check Packagist dependencies for CVE-2020-3716?
Run the dependency tree command: 'inspect dependencies for magento/community-edition'. 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-9wc9-498w-h8xv",
  "modified" : "2024-01-10T19:58:36Z",
  "published" : "2022-05-24T17:07:42Z",
  "aliases" : [ "CVE-2020-3716" ],
  "summary" : "Magento deserialization vulnerability",
  "details" : "Magento versions 2.3.3 and earlier, 2.2.10 and earlier, 1.14.4.3 and earlier, and 1.9.4.3 and earlier have a deserialization of untrusted data vulnerability. Successful exploitation could lead to arbitrary code execution.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "magento/community-edition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2.0"
      }, {
        "fixed" : "2.2.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "magento/community-edition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.3.0"
      }, {
        "fixed" : "2.3.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-3716"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/magento/magento2"
  }, {
    "type" : "WEB",
    "url" : "https://helpx.adobe.com/security/products/magento/apsb20-02.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-10T19:58:36Z",
    "nvd_published_at" : "2020-01-29T19:15:00Z"
  }
}