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TUCoPS :: Unix :: General :: asfsm.txt

The Xwindows window manager AfterStep asfsm contains a temp file symlink bug allows users to overwrite files.





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Date:         Tue, 25 Aug 1998 01:06:51 -0400
From:         Kristofer Coward <kris@SNOW.UTORONTO.CA>
Subject:      AfterStep asfsm tmp hole

The disk usage monitor that comes with AfterStep (asfsm) overwrites
/usr/tmp/statfs regularly as whoever launched it, allowing the typical
symlink crap we've come to expect, including a possible DoS if run as root.

Kris Coward
kris@snow.utoronto.ca

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Date:         Tue, 25 Aug 1998 12:40:28 -0400
From:         Kristofer Coward <kris@SNOW.UTORONTO.CA>
Subject:      Re: AfterStep asfsm tmp hole

> > The disk usage monitor that comes with AfterStep (asfsm) overwrites
> > /usr/tmp/statfs regularly as whoever launched it, allowing the typical
> > symlink crap we've come to expect, including a possible DoS if run as
> > root.
>
> Which version?  Have you contacted the developers first?!

1.4.x (haven't checked 1.0, or 1.5pre). I posted to the as list before
writing here, that post also told them that it would be posted here. It's
a small enough bell/whistle that most of the world should be able to live
without it until it's patched (not that that should take long).

Kris Coward


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