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GHSA-6WJW-QF87-FV5V

Vulnerability from github – Published: 2024-05-15 22:01 – Updated: 2024-05-15 22:01
VLAI
Summary
Laravel Encrypter Failure to decryption vulnerability
Details

A potential exploit of the Laravel Encrypter component that may cause the Encrypter to fail on decryption and unexpectedly return false.

To exploit this, the attacker must be able to modify the encrypted payload before it is decrypted. Depending on the code within your application, this could lead to unexpected behavior when combined with weak type comparisons, for example:

<?php

$decyptedValue = decrypt($secret);

if ($decryptedValue == '') {
    // Code is run even though decrypted value is false...
}
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "illuminate/encryption"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.5.0"
            },
            {
              "fixed": "5.5.40"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "illuminate/encryption"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.6.0"
            },
            {
              "fixed": "5.6.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1240"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-05-15T22:01:01Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "A potential exploit of the Laravel Encrypter component that may cause the Encrypter to fail on decryption and unexpectedly return false.\n\nTo exploit this, the attacker must be able to modify the encrypted payload before it is decrypted. Depending on the code within your application, this could lead to unexpected behavior when combined with weak type comparisons, for example:\n\n```php\n\u003c?php\n\n$decyptedValue = decrypt($secret);\n\nif ($decryptedValue == \u0027\u0027) {\n    // Code is run even though decrypted value is false...\n}\n```",
  "id": "GHSA-6wjw-qf87-fv5v",
  "modified": "2024-05-15T22:01:01Z",
  "published": "2024-05-15T22:01:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/illuminate/encryption/commit/51667a52bd7d135c6aa40a897656ffe9d3cd072d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/illuminate/encryption/commit/c80b1da6a0412bd74bd56dc80f6126f561631b05"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/illuminate/encryption/2018-03-30-1.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/illuminate/encryption"
    },
    {
      "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 Failure to decryption vulnerability"
}



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Nomenclature

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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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