TRCore DVC - Téléchargement arbitraire de fichiers via Path Traversal

The impact of this vulnerability is severe. An attacker can leverage the Path Traversal flaw to upload malicious files, such as webshells, to any directory on the server. Successful exploitation grants the attacker the ability to execute arbitrary code, potentially leading to complete system compromise. This could involve data theft, modification, or deletion, as well as establishing a persistent backdoor for future access. The lack of authentication requirements significantly broadens the attack surface, making the system vulnerable to widespread exploitation.

Organizations utilizing TRCore DVC in production environments, particularly those with internet-facing deployments, are at significant risk. Systems with legacy configurations or those lacking robust security controls are especially vulnerable. Shared hosting environments where multiple users share the same DVC instance are also at increased risk.

• other: Monitor DVC server logs for unusual file upload activity, particularly attempts to upload files with unexpected extensions or to unusual directories. Look for patterns indicative of path traversal attempts (e.g., ../). • other: Implement file integrity monitoring (FIM) to detect unauthorized modifications to critical system files and directories. • other: Review DVC configuration for any misconfigurations that could exacerbate the vulnerability, such as overly permissive file upload settings.

1. 2024-11-18Disclosure

   disclosure

1. Réservé2024-11-18
2. Publiée2024-11-18
3. EPSS mis à jour2026-04-02

The primary mitigation is to immediately upgrade TRCore DVC to version 6.3.1 or later, which contains the fix for this vulnerability. If upgrading is not immediately feasible, consider implementing temporary workarounds. Restrict file uploads to only explicitly allowed file types. Implement strict input validation to prevent path manipulation. Configure a Web Application Firewall (WAF) to block suspicious file upload attempts and monitor file system activity for unauthorized modifications. Regularly scan the system for malicious files.