nonsuid overflows... still at risk?

From: KF (dotslashat_private)
Date: Tue Jun 05 2001 - 09:59:19 PDT

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    Here are several binaries on SCO that are not suid however seem to have
    classic 
    overflows... I was wondering if these could be exploited due to the fact
    that a number
    of programs calls them. vi pg and more are the binaries in question. 
    
    # SCO_SV frodev 3.2 5.0.6 i386
    #  TERM=`perl -e 'print "A" x 7000'`
    # export TERM
    # vi
    Memory fault - core dumped
    # pg
    Memory fault - core dumped
    # more
    Memory fault - core dumped
    
    Perhaps vi is exploitable via a suid program calling it?
    # ls -al /usr/bin/crontab
    lrwxrwxrwx   1 root     root          39 Mar 26 08:23 /usr/bin/crontab
    -> /opt/K/SCO/Unix/5.0.6Ga/usr/bin/crontab
    # ls -al /opt/K/SCO/Unix/5.0.6Ga/usr/bin/crontab
    ---x--s--x   1 bin      cron       39940 Jul 28  2000
    /opt/K/SCO/Unix/5.0.6Ga/usr/bin/crontab
    
    # ls core*
    core
    # rm core
    # crontab -e
    note there was no message about it but there is a new core file. 
    # ls core
    core
    
    input anyone?
    
    -KF
    



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