X-Git-Url: http://ftp.carnet.hr/carnet-debian/scm?a=blobdiff_plain;f=usr%2Fshare%2Fcarnet-upgrade%2Ffiles%2Fetc%2Fcron.daily%2Faide;fp=usr%2Fshare%2Fcarnet-upgrade%2Ffiles%2Fetc%2Fcron.daily%2Faide;h=e5fa1780b7eeb42fdbd969e5b3623e16ddf65632;hb=039bb4c83072ff6930f464a4ed00c1c97099a3ca;hp=0000000000000000000000000000000000000000;hpb=9e8ab2c99a8eb59f0a500734371be21e10fe39c8;p=carnet-upgrade.git diff --git a/usr/share/carnet-upgrade/files/etc/cron.daily/aide b/usr/share/carnet-upgrade/files/etc/cron.daily/aide new file mode 100755 index 0000000..e5fa178 --- /dev/null +++ b/usr/share/carnet-upgrade/files/etc/cron.daily/aide @@ -0,0 +1,157 @@ +#!/bin/bash + +PATH="/sbin:/usr/sbin:/bin:/usr/bin" +LOGDIR="/var/log/aide" +LOGFILE="aide.log" +CONFFILE="/var/lib/aide/aide.conf.autogenerated" +ERRORLOG="error.log" +ERRORTMP=`tempfile --directory "/tmp" --prefix "$ERRORLOG"` + +[ -f /usr/bin/aide ] || exit 0 + +if [ -f /etc/default/aide ]; then + . /etc/default/aide +fi + +DATABASE=`grep "^database=file:/" $CONFFILE | head -1 | cut --delimiter=: --fields=2` +FQDN=`hostname -f` +DATE=`date +"at %Y-%m-%d %H:%M"` + +# default values + +MAILTO="${MAILTO:-root}" +DATABASE="${DATABASE:-/var/lib/aide/aide.db}" +LINES="${LINES:-1000}" +COMMAND="${COMMAND:-check}" + +AIDEARGS="-V4" + +if [ ! -f $DATABASE ]; then + ( + echo "Fatal error: The AIDE database does not exist!" + echo "This may mean you haven't created it, or it may mean that someone has removed it." + ) | /usr/bin/mail -s "Daily AIDE report for $FQDN" $MAILTO + exit 0 +fi + +[ -f "$LOGDIR/$LOGFILE" ] && savelog -t -g adm -m 640 -u root -c 7 "$LOGDIR/$LOGFILE" > /dev/null +[ -f "$LOGDIR/$ERRORLOG" ] && savelog -t -g adm -m 640 -u root -c 7 "$LOGDIR/$ERRORLOG" > /dev/null + +aide $AIDEARGS --$COMMAND >"$LOGDIR/$LOGFILE" 2>"$ERRORTMP" +RETVAL=$? + +if [ -n "$QUIETREPORTS" ] && [ $QUIETREPORTS -a \! -s $LOGDIR/$LOGFILE -a \! -s $ERRORTMP ]; then + # Bail now because there was no output and QUIETREPORTS is set + exit 0 +fi + +(cat << EOF; +This is an automated report generated by the Advanced Intrusion Detection +Environment on $FQDN ${DATE}. + +EOF + +# include error log in daily report e-mail + +if [ "$RETVAL" != "0" ]; then + cat > "$LOGDIR/$ERRORLOG" << EOF; + +***************************************************************************** +* aide returned a non-zero exit value * +***************************************************************************** + +EOF + echo "exit value is: $RETVAL" >> "$LOGDIR/$ERRORLOG" +else + touch "$LOGDIR/$ERRORLOG" +fi +< "$ERRORTMP" cat >> "$LOGDIR/$ERRORLOG" +rm -f "$ERRORTMP" + +if [ -s "$LOGDIR/$ERRORLOG" ]; then + errorlines=`wc -l "$LOGDIR/$ERRORLOG" | awk '{ print $1 }'` + if [ ${errorlines:=0} -gt $LINES ]; then + cat << EOF; + +**************************************************************************** +* aide has returned many errors. * +* the error log output has been truncated in this mail * +**************************************************************************** + +EOF + echo "Error output is $errorlines lines, truncated to $LINES." + head -$LINES "$LOGDIR/$ERRORLOG" + echo "The full output can be found in $LOGDIR/$ERRORLOG." + else + echo "Errors produced ($errorlines lines):" + cat "$LOGDIR/$ERRORLOG" + fi +else + echo "AIDE produced no errors." +fi + +# include de-noised log + +if [ -n "$NOISE" ]; then + NOISETMP=`tempfile --directory "/tmp" --prefix "aidenoise"` + NOISETMP2=`tempfile --directory "/tmp" --prefix "aidenoise"` + sed -n '1,/^Detailed information about changes:/p' "$LOGDIR/$LOGFILE" | \ + grep '^\(changed\|removed\|added\):' | \ + grep -v "^added: THERE WERE ALSO [0-9]\+ FILES ADDED UNDER THIS DIRECTORY" > $NOISETMP2 + + if [ -n "$NOISE" ]; then + < $NOISETMP2 grep -v "^\(changed\|removed\|added\):$NOISE" > $NOISETMP + rm -f $NOISETMP2 + echo "De-Noised output removes everything matching $NOISE." + else + mv $NOISETMP2 $NOISETMP + echo "No noise expression was given." + fi + + if [ -s "$NOISETMP" ]; then + loglines=`< $NOISETMP wc -l | awk '{ print $1 }'` + if [ ${loglines:=0} -gt $LINES ]; then + cat << EOF; + +**************************************************************************** +* aide has returned long output which has been truncated in this mail * +**************************************************************************** + +EOF + echo "De-Noised output is $loglines lines, truncated to $LINES." + < $NOISETMP head -$LINES + echo "The full output can be found in $LOGDIR/$LOGFILE." + else + echo "De-Noised output of the daily AIDE run ($loglines lines):" + cat $NOISETMP + fi + else + echo "AIDE detected no changes after removing noise." + fi + rm -f $NOISETMP + echo "============================================================================" +fi + +# include non-de-noised log + +if [ -s "$LOGDIR/$LOGFILE" ]; then + loglines=`wc -l "$LOGDIR/$LOGFILE" | awk '{ print $1 }'` + if [ ${loglines:=0} -gt $LINES ]; then + cat << EOF; + +**************************************************************************** +* aide has returned long output which has been truncated in this mail * +**************************************************************************** + +EOF + echo "Output is $loglines lines, truncated to $LINES." + head -$LINES "$LOGDIR/$LOGFILE" + echo "The full output can be found in $LOGDIR/$LOGFILE." + else + echo "Output of the daily AIDE run ($loglines lines):" + cat "$LOGDIR/$LOGFILE" + fi +else + echo "AIDE detected no changes." +fi +) | /usr/bin/mail -s "Daily AIDE report for $FQDN" $MAILTO