I think it's possible... though I don't have the permissions to create a test.
1) I went to the SharePoint Site I would like to upload files to
2) I clicked on the Library tab at the top and then clicked on Open In Explorer from the ribbon
3) I noted the network location and converted it to a URI (remove http:// and use \\ and \'s between folders).
4) I used the URI created and tested a create and delete file with success
Next steps are what I would attempt but do not have access to test
5) Create a CIFS or SMB share from linux with proper write permissions (Or perhaps SAS can work with a URI? The SAS Service Account would need write permissions)
6) Make that path available to SAS CIS
Great question as this may be an option for us to look into to improve our workflow.
Best of luck.