SFTP Server Connection

[4n6xp3rt]

Hi everyone!

Firstly, Thiago, UAC is a fantastic tool. I know you hear this a lot, but I just had to say it.

Anyway, getting to the point — I recently came across a situation where I was trying to perform an acquisition using UAC and send the result to an SFTP server. I followed the documentation's instructions and got the following error:

Validating connectivity to SFTP server...
 > sftp -r -P 22 -i "/Users/4n6guy/id_rsa" -o StrictHostKeyChecking=no,UserKnownHostsFile=/dev/null "[email protected]" >/dev/null << EOF
pwd
EOF
command-line line 0: unsupported option "no,UserKnownHostsFile=/dev/null".
Connection closed.
Connection closed
uac: error connecting to SFTP server

When using multiple options with the sftp command, you need to provide the -o parameter for each option separately.

The current syntax:

sftp -r -P 22 -i "/Users/4n6guy/id_rsa" -o StrictHostKeyChecking=no,UserKnownHostsFile=/dev/null "[email protected]" >/dev/null << EOF

The correct syntax should be:
sftp -r -P 22 -i "/Users/4n6guy/id_rsa" -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "[email protected]" >/dev/null << EOF

In short, we need to replace the comma (,) after the StrictHostKeyChecking=no option with another -o.

So, I went to the lib folder and edited line 24 of the sftp_transfer.sh file, specifically the __sr_ssh_options_param variable, to allow multiple options to be used correctly. Here's the updated line 24:
__sr_ssh_options_param="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null${__sr_ssh_options:+-o} ${__sr_ssh_options}"

After that, UAC worked like a charm:

Validating artifact list...
Loading config file...
Validating connectivity to SFTP server...
 > sftp -r -P 22 -i "/Users/4n6guy/id_rsa" -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null  "[email protected]" >/dev/null << EOF
pwd
EOF
Warning: Permanently added '10.10.10.99' (ED25519) to the list of known hosts.
Enter passphrase for key '/Users/4n6guy/id_rsa':

I believe it will be a minor fix in future releases.

Hope this helps, guys!

[tclahr]

I will close this one as it was converted in an issue #366