From kfm-devel  Sat Oct 09 14:18:00 1999
From: owner () bugs ! kde ! org (Stephan Kulow)
Date: Sat, 09 Oct 1999 14:18:00 +0000
To: kfm-devel
Subject: Bug#1956: marked as done (kfmsu2 is insecure)
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Your message dated Sat, 9 Oct 1999 16:02:47 +0200
with message-id <19991009160245.F25150@faui08c.informatik.uni-erlangen.de>
and subject line closing bug "kfmsu2 is insecure"
has caused the attached bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I'm
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Stephan Kulow
(administrator, KDE bugs database)

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From:   Tom Allard <m1tca00@frb.gov>
Subject: kfmsu2 is insecure
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Package: kfm
Version: 1.1.2

kfmsu2 calls "xhost +local:", which is insecure.

I suggest setting the XAUTHORITY environment for root to that of the user's to 
securely give root access to the display:

Remove "xhost +local:" and change su:

su - root -c "XAUTHORITY=$HOME/.Xauthority; DISPLAY=$DISPLAY; \
    export XAUTHORITY DISPLAY; $kfm -sw >/dev/null"

I am using both Debian Slink and Redhat 6.0 with updates.