According to Hudson 1.350 changelog:

• Authentication support in Hudson CLI. (issue 3796)

it should be possible now to use the CLI when Authorization is set up... but it does not seem to work.

My setup:

• Enable security ticked
• Authorization Matrix-based security
  Anonymous (all denied)
  admin (all allowed)

I can only login at the Hudson dashboard if I use the admin account.

But when I try to use the hudson CLI (downloaded the jar file from http://localhost:8080/hudson/cli) I get:
C:\Work\hudson>java -jar hudson-cli.jar -s http://localhost:8080/hudson help
Exception in thread "main" java.io.IOException: Server returned HTTP response code: 403 for URL: http://localhost:8080/hudson/cli
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at hudson.cli.FullDuplexHttpStream.<init>(FullDuplexHttpStream.java:51)
at hudson.cli.CLI.<init>(CLI.java:90)
at hudson.cli.CLI.<init>(CLI.java:62)
at hudson.cli.CLI.main(CLI.java:171)

The same happens when I provide the username and password details:
C:\Work\hudson>java -jar hudson-cli.jar -s http://localhost:8080/hudson help --username admin --password theRightPassword
Exception in thread "main" java.io.IOException: Server returned HTTP response code: 403 for URL: http://localhost:8080/hudson/cli
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at hudson.cli.FullDuplexHttpStream.<init>(FullDuplexHttpStream.java:51)
at hudson.cli.CLI.<init>(CLI.java:90)
at hudson.cli.CLI.<init>(CLI.java:62)
at hudson.cli.CLI.main(CLI.java:171)

is this the correct way to provide auth credentials via the CLI args?