CVE-2025-52904
Vulnérabilité élevée dans filebrowser (filebrowser)
Description
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. In versions of the web application on the 2.x branch, all users have a scope assigned, and they only have access to the files within that scope. The Command Execution feature of Filebrowser allows the execution of shell commands which are not restricted to the scope, potentially giving an attacker read and write access to all files managed by the server. Until this issue is fixed, the maintainers recommend to completely disable `Execute commands` for all accounts. Since the command execution is an inherently dangerous feature that is not used by all deployments, it should be possible to completely disable it in the application's configuration. This feature has been disabled by default for all installations from v2.33.8 onwards, including for existent installations. To exploit this vulnerability, the instance administrator must turn on a feature and ignore all the warnings about known vulnerabilities.
Gravité et risque d'exploitation
CVE-2025-52904 obtient un score CVSS de 8.0/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 1.11 %, ce qui la place devant 65.5 % des CVE référencées.
Que faire ?
- Vérifiez si filebrowser (versions >= 2.0.0, < 2.33.8) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-hc8f-m8g5-8362
- https://github.com/filebrowser/filebrowser/issues/5199
- https://github.com/GoogleContainerTools/distroless
- https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250326-01_Filebrowser_Command_Execution_Not_Limited_To_Scope
- https://pkg.go.dev/vuln/GO-2025-3793
- https://sloonz.github.io/posts/sandboxing-1
