X2Go Bug report logs - #773
DirectRDP: X2Go Client reveals user password in process list if xfreerdp is used

Package: x2goclient; Maintainer for x2goclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goclient is src:x2goclient.

Reported by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Date: Thu, 29 Jan 2015 12:15:01 UTC

Severity: grave

Done: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Bug is archived. No further changes may be made.

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From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
To: submit@bugs.x2go.org
Subject: DirectRDP: X2Go Client reveals user password in process list if
 xfreerdp is used
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[Message part 1 (text/plain, inline)]
Package: x2goclient
Severity: grave

When a users uses X2Go Client for directly accessing an RDP Server,  
then one can use the DirectRDP feature.

The DirectRDP features allows wrapping around the rdesktop command or  
the xfreerdp command.

With both wrapper modes, the password is given to the RDP client  
application on the command line.

With rdesktop, the command line ($@) gets rewritten for the process  
list and the password is replaced by XXXXXXXX.

With xfreerdp, the command line stays as is and reveals the RDP user's  
password on the process list of the machine that X2Go Client runs on.

The FreeRDP people have added a command line option --from-stdin to  
xfreerdp 1.0.x for this purpose, that may be an option using in X2Go  
Client. However, I am not sure, if this option survived in xfreerdp  
1.1.x or later (it is not on the xfreerdp man page for  
1.1.0~git<sometime-in-2014> as shipped with Debian jessie.

Mike



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