full-disclosure - New Remote Windows Exploit (MS04-029)

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Message-ID: <200411041924.iA4JOr9D006350@turing-police.cc.vt.edu>
From: Valdis.Kletnieks at vt.edu (Valdis.Kletnieks@...edu)
Subject: New Remote Windows Exploit (MS04-029) 

On Thu, 04 Nov 2004 15:33:38 -0200, Rodrigo Barbosa said:

> Does anyone still have /tmp without noexec ?
> 
> /dev/sda2 on /tmp type ext3 (rw,noexec,nodev,nosuid)

1) A lot of people have a "one partition for everything" configuration,
as that's what their distro did at the time they first installed it.  This
makes it hard to mount /tmp with different options, and a lot of people don't
feel like doing a complete re-install to repartition.

2) An amazing amount of stuff assumes that /tmp has 'exec' - at
least for a while, 'rpmbuild' of a Redhat Perl would die because it
build into a directory on /tmp, and then tried to run a binary out
of that just-built tree - workaround was to feed rpm a '%_tmpdir ='
pointing elsewhere.  Dell's microcode installer hits the same issue,
as did at least some OpenOffice builds.

So if you do it, be prepared to get bit, and have to do a
'mount -o remount,exec /tmp' once in a while...
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