Re: NSFOCUS SA2001-04 : Solaris dtmail Buffer Overflow Vulnerability

From: Virtualcat Blackcat (virtualcatat_private)
Date: Tue Jul 24 2001 - 19:36:48 PDT

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    Couldn't reproduce on SUNOS 5.6
    % uname -a
    SunOS sundev1 5.6 Generic_105181-19 sun4u 
    sparc SUNW,Ultra-1
    % echo $SHELL
    /usr/bin/ksh
    % cp /usr/dt/bin/dtmail .
    % export MAIL=`perl -e print "A"x2000'`
    % ./dtmail 
    <!-- Clicked on [Local] when Xwindow popped up -->
    % 
    dtmail didn't crash.
    
    % export MAIL=`perl -e 'print "A"x20000'`
    % ./dtmail
    %
    Didn't crash either.
    
    % export HOME=`perl -e 'print "A"x360'`
    % ./dtmail                             
    Segmentation Fault(coredump)
    
    Looks like there is something in $HOME, not in $MAIL 
    as posted.
    
    Regards,
    Virtualcat
    
    ..oO(I am virtual)Oo.. 
    virtualcatat_private
    



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