CVE-2019-9081: Laravel/framework Laravel Framework Deserialization Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-pfg4-p438-p874
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CVSS 9.8
CWE-502
Published
Advisory Summary

CVE-2019-9081 is a CRITICAL (CVSS 9.8) laravel framework deserialization vulnerability vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Laravel/framework libraries in the Packagist ecosystem. The issue involves laravel framework deserialization vulnerability. Remediation is available by upgrading affected packages to version 6.20.44.

CVE-2019-9081 at a Glance

CVE Identifier CVE-2019-9081
GHSA Identifier GHSA-pfg4-p438-p874
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Laravel/framework
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-2019-9081

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

laravel/framework fixed: 6.20.44 
Upgrade laravel/framework to 6.20.44
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 laravel/framework

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-9081, inspect your project dependencies for Laravel/framework:

inspect dependencies for laravel/framework

Analyze the terminal output to locate any version of Laravel/framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.20.44), 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 Laravel/framework, 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

The Illuminate component of Laravel Framework 5.7.x has a deserialization vulnerability that can lead to remote code execution if the content is controllable, related to the `__destruct` method of the PendingCommand class in `PendingCommand.php`.

CVE-2019-9081 Affected Laravel/framework Versions

1 component(s)
Fixed Versions:
6.20.44
Product / Package Ecosystem Affected Versions Fixed Version
laravel/framework
 Packagist
≥ 5.7.0
< 6.20.44
6.20.44

References

NVD — CVE-2019-9081 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-9081
Laravel/framework Source Repository REPOSITORY
https://github.com/Laworigin/Laworigin.github.io/blob/master/2019/02/21/laravelv5-7%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96rce/index.html
Laravel/framework Source Repository REPOSITORY
https://github.com/laravel/framework
Laravel/framework Source Repository REPOSITORY
https://github.com/laravel/framework/discussions/40184
laworigin.github.io/2019/02/21/laravelv... WEB
https://laworigin.github.io/2019/02/21/laravelv5-7%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96rce

Frequently Asked Questions

What is CVE-2019-9081?
CVE-2019-9081 is a security vulnerability in Laravel/framework involving Laravel Framework Deserialization Vulnerability under CWE-502: Deserialization of Untrusted Data.
Which Laravel/framework versions are affected?
Affected versions include releases prior to 6.20.44 across affected packages: laravel/framework.
What version fixes CVE-2019-9081?
Upgrading to 6.20.44 (or the latest patched release for your respective branch) resolves the vulnerability.
Is laravel/framework affected?
Yes, laravel/framework is affected in releases prior to 6.20.44. Upgrade your dependency to 6.20.44 or later.
What is the CVSS score of CVE-2019-9081?
CVE-2019-9081 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-2019-9081?
CVE-2019-9081 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-2019-9081?
Run the dependency tree command: 'inspect dependencies for laravel/framework'. 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-pfg4-p438-p874",
  "modified" : "2023-09-28T20:37:44Z",
  "published" : "2022-05-14T01:31:22Z",
  "aliases" : [ "CVE-2019-9081" ],
  "summary" : "Laravel Framework Deserialization Vulnerability",
  "details" : "The Illuminate component of Laravel Framework 5.7.x has a deserialization vulnerability that can lead to remote code execution if the content is controllable, related to the `__destruct` method of the PendingCommand class in `PendingCommand.php`.",
  "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" : "laravel/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.7.0"
      }, {
        "fixed" : "6.20.44"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-9081"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Laworigin/Laworigin.github.io/blob/master/2019/02/21/laravelv5-7%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96rce/index.html"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/laravel/framework"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/discussions/40184"
  }, {
    "type" : "WEB",
    "url" : "https://laworigin.github.io/2019/02/21/laravelv5-7%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96rce"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-19T20:35:32Z",
    "nvd_published_at" : "2019-02-24T17:29:00Z"
  }
}