GHSA-7852-W36X-6MF6

Vulnerability from github – Published: 2024-05-15 22:08 – Updated: 2024-05-15 22:08
VLAI
Summary
Laravel Encrypter Component Potential Decryption Failure Leading to Unintended Behavior
Details

The Laravel Encrypter component is susceptible to a vulnerability that may result in decryption failure, leading to an unexpected return of false. Exploiting this issue requires the attacker to manipulate the encrypted payload before decryption. When combined with weak type comparisons in the application's code, such as the example below:

<?php

$decyptedValue = decrypt($secret);

if ($decryptedValue == '') {
    // Code is run even though decrypted value is false...
}
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "laravel/framework"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.5.40"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "laravel/framework"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.6.0"
            },
            {
              "fixed": "5.6.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1240"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-05-15T22:08:06Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "The Laravel Encrypter component is susceptible to a vulnerability that may result in decryption failure, leading to an unexpected return of `false`. Exploiting this issue requires the attacker to manipulate the encrypted payload before decryption. When combined with weak type comparisons in the application\u0027s code, such as the example below:\n\n```\n\u003c?php\n\n$decyptedValue = decrypt($secret);\n\nif ($decryptedValue == \u0027\u0027) {\n    // Code is run even though decrypted value is false...\n}\n```",
  "id": "GHSA-7852-w36x-6mf6",
  "modified": "2024-05-15T22:08:06Z",
  "published": "2024-05-15T22:08:06Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/laravel/framework/commit/28e53f23a76206fb130e9a54eb95aa3f010e79c9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/laravel/framework/commit/886d261df0854426b4662b7ed5db6a1c575a4279"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/laravel/framework/2018-03-30-1.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/laravel/framework"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/@taylorotwell/laravel-security-release-5-6-15-and-5-5-40-56f1257933a0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Laravel Encrypter Component Potential Decryption Failure Leading to Unintended Behavior"
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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