Symfony SSRF Vulnerability via Form Component
An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. When a form is submitted by the user, the request handler classes of the Form component merge POST data and uploaded files data into one array. This big array forms the data that are then bound to the form. At this stage there is no difference anymore between submitted POST data and uploaded files. A user can send a crafted HTTP request where the value of a "FileType" is sent as normal POST data that could be interpreted as a local file path on the server-side (for example, "file:///etc/passwd"). If the application did not perform any additional checks about the value submitted to the "FileType", the contents of the given file on the server could have been exposed to the attacker.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de Composer | symfony/form | >= 2.7.0, < 2.7.38, >= 2.8.0, < 2.8.31, >= 3.0.0, < 3.2.14, >= 3.3.0, < 3.3.13 | 2.7.38, 2.8.31, 3.2.14, 3.3.13 |
| Paquete de Composer | symfony/symfony | >= 2.7.0, < 2.7.38, >= 2.8.0, < 2.8.31, >= 3.0.0, < 3.2.14, >= 3.3.0, < 3.3.13 | 2.7.38, 2.8.31, 3.2.14, 3.3.13 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2017-16790
- https://github.com/symfony/symfony/pull/24993
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/form/CVE-2017-16790.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2017-16790.yaml
- https://github.com/symfony/form
- https://symfony.com/blog/cve-2017-16790-ensure-that-submitted-data-are-uploaded-files
- https://symfony.com/cve-2017-16790
- https://www.debian.org/security/2018/dsa-4262
- Vector CVSS
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Debilidad (CWE)
CWE-20, CWE-918- Plataforma
- Composer
- Paquete
symfony/form, symfony/symfony- Publicada
- 14.05.2022
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-cqqh-94r6-wjrg - CC BY 4.0
Historial de vulnerabilidades: symfony/form
Todas las vulnerabilidades publicadas de este paquete (Paquete de Composer), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 3
- Primera → última
- 05.2022 05.2022
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 1
- Media 2
Divulgaciones por año
- 2022: 3
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Symfony SSRF Vulnerability via Form Component esta entrada
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