CVE-2024-27917

Shopware is an open commerce platform based on Symfony Framework and Vue. The Symfony Session Handler pops the Session Cookie and assigns it to the Response. Since Shopware 6.5.8.0, the 404 pages are cached to improve the performance of 404 pages. So the cached Response which contains a Session Cookie when the Browser accessing the 404 page, has no cookies yet. The Symfony Session Handler is in use, when no explicit Session configuration has been done. When Redis is in use for Sessions using the PHP Redis extension, this exploiting code is not used. Shopware version 6.5.8.7 contains a patch for this issue. As a workaround, use Redis for Sessions, as this does not trigger the exploit code.

Shopware is an open commerce platform based on Symfony Framework and Vue. The Symfony Session Handler pops the Session Cookie and assigns it to the Response. Since Shopware 6.5.8.0, the 404 pages are cached to improve the performance of 404 pages. So the cached Response which contains a Session Cookie when the Browser accessing the 404 page, has no cookies yet. The Symfony Session Handler is in use, when no explicit Session configuration has been done. When Redis is in use for Sessions using the PHP Redis extension, this exploiting code is not used. Shopware version 6.5.8.7 contains a patch for this issue. As a workaround, use Redis for Sessions, as this does not trigger the exploit code.

### Impact The Symfony Session Handler, pop's the Session Cookie and assign it to the Response. Since Shopware 6.5.8.0 the 404 pages, are cached, to improve the performance of 404 pages. So the cached Response, contains a Session Cookie when the Browser accessing the 404 page, has no cookies yet. The Symfony Session Handler is in use, when no explicit Session configuration has been done. When Redis is in use for Sessions using the PHP Redis extension, this exploiting code is not used. ### Patches Update to Shopware version 6.5.8.7 ### Workarounds Using Redis for Sessions, as this does not trigger the exploit code. Example configuration for Redis ```ini # php.ini session.save_handler = redis session.save_path = "tcp://127.0.0.1:6379" ``` ## Consequences As an guest browser session has been cached on a 404 page, every missing image or directly reaching a 404 page will logout the customer or clear his cart.

### Impact The Symfony Session Handler, pop's the Session Cookie and assign it to the Response. Since Shopware 6.5.8.0 the 404 pages, are cached, to improve the performance of 404 pages. So the cached Response, contains a Session Cookie when the Browser accessing the 404 page, has no cookies yet. The Symfony Session Handler is in use, when no explicit Session configuration has been done. When Redis is in use for Sessions using the PHP Redis extension, this exploiting code is not used. ### Patches Update to Shopware version 6.5.8.7 ### Workarounds Using Redis for Sessions, as this does not trigger the exploit code. Example configuration for Redis ```ini # php.ini session.save_handler = redis session.save_path = "tcp://127.0.0.1:6379" ``` ## Consequences As an guest browser session has been cached on a 404 page, every missing image or directly reaching a 404 page will logout the customer or clear his cart.

Shopware es una plataforma de comercio abierta basada en Symfony Framework y Vue. El controlador de sesión de Symfony genera la cookie de sesión y la asigna a la respuesta. Desde Shopware 6.5.8.0, las 404 páginas se almacenan en caché para mejorar el rendimiento de las 404 páginas. Entonces, la respuesta almacenada en caché que contiene una cookie de sesión cuando el navegador accede a la página 404 aún no tiene cookies. El controlador de sesión de Symfony está en uso cuando no se ha realizado ninguna configuración de sesión explícita. Cuando Redis se utiliza para sesiones que utilizan la extensión PHP Redis, este código de explotación no se utiliza. La versión 6.5.8.7 de Shopware contiene un parche para este problema. Como solución alternativa, utilice Redis para sesiones, ya que esto no activa el código de explotación.