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GHSA-7852-w36x-6mf6

Laravel Encrypter Component Potential Decryption Failure Leading to Unintended Behavior

Published
May 15, 2024
Updated
Nov 29, 2024
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed

Blast Radius

2 pkgs affected
🐘laravel/framework🐘laravel/framework

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

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...
}

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistlaravel/frameworkall versions5.5.40
🐘Packagistlaravel/framework5.6.0&&< 5.6.155.6.15

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for laravel/framework. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update laravel/framework to 5.5.40 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7852-w36x-6mf6 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-7852-w36x-6mf6 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-7852-w36x-6mf6. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

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... } ```
O3 Security · Impact-Aware SCA

Is GHSA-7852-w36x-6mf6 in your dependencies?

O3 detects GHSA-7852-w36x-6mf6 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.