rdpproxy creates new folders on the client's drive, even if rdpdr_drive_write channel is denied.

[kamelusz]

Hello.

I compiled rdpproxy source code from commit 6de34f9 (Nov 13, 2024).
Created a configuration file (rdpproxy.ini) with the following contents:

[mod_rdp]
denied_channels = rdpdr_drive_write
allow_nla_ntlm_fallback = true
allow_tls_only_fallback = true

[server_cert]
server_cert_check = 3

After establishing the connection, I tried to perform some write operations on the client's drive. Almost all write operations were forbidden, except for creating a new folder through the context menu. See the video below.

On the left is explorer with the local drive on the computer where the rdp client is running. On the right, explorer on rdp server with the drive is forwarded to the one.

drive_write_denied.mp4

Server: Microsoft Windows 11 Pro, 10.0.22631 Build 22631.
Clients:

• mtsc (10.0.22621.4455);
• remmina (1.4.35).