CVE-2012-6431: Symfony Allows URI Restrictions Bypass Via Double-Encoded String

CVE-2012-6431 · Severity: info · Published 2022-05-17

Symfony Allows URI Restrictions Bypass Via Double-Encoded String

Technologies: symfony/http-foundation (Packagist), symfony/routing (Packagist), symfony/security (Packagist), symfony/symfony (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2012-6431 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2012-6431 being exploited in the wild.
How severe is CVE-2012-6431?
Informational severity, published 17 May 2022.
Which products and versions are affected?
symfony/http-foundation (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19; symfony/routing (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19; symfony/security (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19; symfony/symfony (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19.
Is there a fix for CVE-2012-6431?
Yes. symfony/http-foundation (Packagist): upgrade to 2.0.19 or later; symfony/routing (Packagist): upgrade to 2.0.19 or later; symfony/security (Packagist): upgrade to 2.0.19 or later; symfony/symfony (Packagist): upgrade to 2.0.19 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2012-6431?
Check whether you run symfony/http-foundation (Packagist), symfony/routing (Packagist), symfony/security (Packagist) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • symfony/http-foundation (Packagist): upgrade to 2.0.19 or later
    composer require symfony/http-foundation:^2.0.19
  • symfony/routing (Packagist): upgrade to 2.0.19 or later
    composer require symfony/routing:^2.0.19
  • symfony/security (Packagist): upgrade to 2.0.19 or later
    composer require symfony/security:^2.0.19
  • symfony/symfony (Packagist): upgrade to 2.0.19 or later
    composer require symfony/symfony:^2.0.19

Affected products

  • symfony/http-foundation (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19
  • symfony/routing (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19
  • symfony/security (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19
  • symfony/symfony (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=2.0.19

Identifiers

  • CVE-2012-6431
  • GHSA-83c3-qx27-2rwr

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