CVE-2019-8113: Magento/community edition Magento 2 Community Weak PRNG Vulnerability

MODERATE
Advisory Identifier: GHSA-c4r2-3f9r-rwp8
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CVSS 5.3
CWE-338
Published
Advisory Summary

CVE-2019-8113 is a MODERATE (CVSS 5.3) magento 2 community weak prng vulnerability (CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)) affecting Magento/community edition libraries in the Packagist ecosystem. The issue involves magento 2 community weak prng. Remediation is available by upgrading affected packages to version 2.2.10, 2.3.2-p1.

CVE-2019-8113 at a Glance

CVE Identifier CVE-2019-8113
GHSA Identifier GHSA-c4r2-3f9r-rwp8
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Affected Product Magento/community edition
Package Ecosystem Packagist
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-2019-8113

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: 2.2.10 
Upgrade magento/community-edition to 2.2.10
magento/community-edition fixed: 2.3.2-p1 
Upgrade magento/community-edition to 2.3.2-p1
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-2019-8113, 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 2.2.10), 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-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG), where the product uses a pseudo-random number generator (prng) in a security context, but the prng's algorithm is not cryptographically strong. 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 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1 uses cryptographically weak random number generator to brute-force the confirmation code for customer registration.

CVE-2019-8113 Affected Magento/community edition Versions

2 component(s)
Fixed Versions:
2.2.102.3.2-p1
Product / Package Ecosystem Affected Versions Fixed Version
magento/community-edition
 Packagist
≥ 2.2.0
< 2.2.10
2.2.10
magento/community-edition
 Packagist
≥ 2.3.0
< 2.3.2-p1
2.3.2-p1

References

NVD — CVE-2019-8113 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-8113
Magento/community edition Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2019-8113.yaml
Magento/community edition Source Repository REPOSITORY
https://github.com/magento/magento2
Magento/community edition Security Information SECURITY
https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update
Magento/community edition Security Information SECURITY
https://web.archive.org/web/20220121051105/https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update

Frequently Asked Questions

What is CVE-2019-8113?
CVE-2019-8113 is a security vulnerability in Magento/community edition involving Magento 2 Community Weak PRNG under CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG).
Which Magento/community edition versions are affected?
Affected versions include releases prior to 2.2.10, 2.3.2-p1 across affected packages: magento/community-edition.
What version fixes CVE-2019-8113?
Upgrading to 2.2.10, 2.3.2-p1 (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 2.2.10, 2.3.2-p1. Upgrade your dependency to 2.2.10, 2.3.2-p1 or later.
What is the CVSS score of CVE-2019-8113?
CVE-2019-8113 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-2019-8113?
CVE-2019-8113 is classified under CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.).
How can I check Packagist dependencies for CVE-2019-8113?
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-c4r2-3f9r-rwp8",
  "modified" : "2023-09-26T18:05:26Z",
  "published" : "2022-05-24T17:00:24Z",
  "aliases" : [ "CVE-2019-8113" ],
  "summary" : "Magento 2 Community Weak PRNG",
  "details" : "Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1 uses cryptographically weak random number generator to brute-force the confirmation code for customer registration.",
  "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" : "Packagist",
      "name" : "magento/community-edition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2.0"
      }, {
        "fixed" : "2.2.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "magento/community-edition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.3.0"
      }, {
        "fixed" : "2.3.2-p1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-8113"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2019-8113.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/magento/magento2"
  }, {
    "type" : "WEB",
    "url" : "https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20220121051105/https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-338" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-18T20:05:29Z",
    "nvd_published_at" : "2019-11-05T23:15:00Z"
  }
}