FreeRDP: contains_dotdot() off-by-one allows drive channel path traversal via terminal ..
Résumé
FreeRDP: contains_dotdot() off-by-one allows drive channel path traversal via terminal ..
Description d'origine
La description telle que publiée par la source (souvent en anglais).
FreeRDP is a free implementation of the Remote Desktop Protocol. Versions prior to 3.25.0 have an off-by-one in the path traversal filter in channels/drive/client/drive_file.c. The contains_dotdot() function catches ../ and ..\ mid-path but misses .. when it's the last component with no trailing separator. A rogue RDP server can read, list, or write files one directory above the client's shared folder through RDPDR requests. This requires the victim to connect with drive redirection enabled. Version 3.25.0 patches the issue.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2026-40254 freerdp2
- Ubuntu UBUNTU-CVE-2026-40254 freerdp
Références
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov