Xpra: Ticket #2313: Authentication error when providing password in command-line or via GUI

Xpra client on Windows 10, Xpra server on Linux Ubuntu 18.04 Authentication error when providing password in command-line (xpra attach ssh/user:pass@host...) or via GUI (Xpra Launcher -> connect). When no password privided (xpra attach ssh:user@host.. or blank password field in GUI) connection is possible. Following error in xpra server log:

2019-06-03 12:01:04,103 Connection lost
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/xpra/server/server_core.py", line 535, in _process_hello
    auth_caps = self.verify_hello(proto, c)
  File "/usr/lib/python2.7/dist-packages/xpra/server/server_core.py", line 625, in verify_hello
    authlog.warn("Warning: client expects a challenge but this connection is unauthenticated")
NameError: global name 'authlog' is not defined
2019-06-03 12:01:14,108 connection timedout: Protocol(SocketConnection(/home/agagalsk/.xpra/TB254-TBHOST-100))

Mon, 03 Jun 2019 10:14:01 GMT - arekg: attachment set

Mon, 03 Jun 2019 10:17:17 GMT - Antoine Martin: owner, description changed

As per wiki/ReportingBugs, please specify which version you are running at both ends. This looks like an outdated version on the server at least.

Mon, 03 Jun 2019 14:10:13 GMT - arekg:


 ~ $ xpra --version
xpra v0.15.8
 ~ $ uname -a
Linux HOST 4.10.0-38-generic #42~16.04.1-Ubuntu SMP Tue Oct 10 16:32:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Linux Mint 18.3 Sylvia (GNU/Linux 4.10.0-38-generic x86_64)


c:\Program Files\Xpra>Xpra_cmd.exe --version
xpra v2.5.1-r22424

Mon, 03 Jun 2019 14:10:57 GMT - arekg: owner changed

Mon, 03 Jun 2019 15:26:50 GMT - Antoine Martin: status changed; resolution set

Your server version is completely out of date, and full of security issues. Details here: wiki/Packaging/DistributionPackages.

Don't use the packages from Ubuntu, or if you do, report the bugs there (and nothing will happen since they have never applied a single fix in 4 years).

Sat, 23 Jan 2021 05:47:58 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2313