GHSA-vfm6-r2gc-pwww
Symfony2 security issue when the trust proxy mode is enabled
Quick fix
GHSA-vfm6-r2gc-pwww — symfony/http-foundation: upgrade to the fixed version with the command below.
composer require symfony/http-foundation:^2.0.19Details
An application is vulnerable if it uses the client IP address as returned by the Request::getClientIp() method for sensitive decisions like IP based access control.
To fix this security issue, the following changes have been made to all versions of Symfony2:
A new Request::setTrustedProxies() method has been introduced and should be used intead of Request::trustProxyData() to enable the trust proxy mode. It takes an array of trusted proxy IP addresses as its argument: ``` // before (probably in your front controller script) Request::trustProxyData();
// after Request::setTrustedProxies(array('1.1.1.1')); // 1.1.1.1 being the IP address of a trusted reverse proxy ``` The Request::trustProxyData() method has been deprecated (when used, it automatically trusts the latest proxy in the chain -- which is the current remote address): ``` Request::trustProxyData();
// is equivalent to Request::setTrustedProxies(array($request->server->get('REMOTE_ADDR'))); ``` We encourage all Symfony2 users to upgrade as soon as possible. It you don't want to upgrade to the latest version yet, you can also apply the following patches:
- [Patch](https://github.com/symfony/symfony/compare/fc89d6b...9ce892c.patch) for Symfony 2.0.19 - [Patch](https://github.com/symfony/symfony/compare/922c201...e5536f0.patch) for Symfony 2.1.4
Are you affected?
Enter the version of the package you're using.
Affected packages
2.0.0Fixed in: 2.0.19composer require symfony/http-foundation:^2.0.192.1.0Fixed in: 2.1.4composer require symfony/http-foundation:^2.1.42.0.0Fixed in: 2.0.19composer require symfony/symfony:^2.0.192.1.0Fixed in: 2.1.4composer require symfony/symfony:^2.1.4References
- https://github.com/symfony/http-foundation/commit/5cde5229fc71a19cef2a0a933a18e08e43252f34[WEB]
- https://github.com/symfony/http-foundation/commit/795ac45c188ee2a729db4513e9dfd30b16a0ed35[WEB]
- https://github.com/symfony/symfony/commit/9ce892cf4395e73b136e9b5cd1fae9e91995c93b[WEB]
- https://github.com/symfony/symfony/commit/e5536f0fe10421da7ebbe0071343e94d039dfb97[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/2012-11-29.yaml[WEB]
- https://symfony.com/blog/security-release-symfony-2-0-19-and-2-1-4[WEB]