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  5. GHSA-6wjw-qf87-fv5v

GHSA-6wjw-qf87-fv5v: Laravel Encrypter Failure to decryption vulnerability

May 15, 2024

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...
}

References

  • github.com/FriendsOfPHP/security-advisories/blob/master/illuminate/encryption/2018-03-30-1.yaml
  • github.com/advisories/GHSA-6wjw-qf87-fv5v
  • github.com/illuminate/encryption
  • github.com/illuminate/encryption/commit/51667a52bd7d135c6aa40a897656ffe9d3cd072d
  • github.com/illuminate/encryption/commit/c80b1da6a0412bd74bd56dc80f6126f561631b05
  • medium.com/@taylorotwell/laravel-security-release-5-6-15-and-5-5-40-56f1257933a0

Code Behaviors & Features

Detect and mitigate GHSA-6wjw-qf87-fv5v with GitLab Dependency Scanning

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Affected versions

All versions starting from 5.5.0 before 5.5.40, all versions starting from 5.6.0 before 5.6.15

Fixed versions

  • 5.5.40
  • 5.6.15

Solution

Upgrade to versions 5.5.40, 5.6.15 or above.

Weakness

  • CWE-1240: Use of a Cryptographic Primitive with a Risky Implementation

Source file

packagist/illuminate/encryption/GHSA-6wjw-qf87-fv5v.yml

Spotted a mistake? Edit the file on GitLab.

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