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112 lines
3.0 KiB
Bash
Executable File
112 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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#
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# CIS Debian 7 Hardening
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#
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#
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# 9.1.8 Restrict at/cron to Authorized Users (Scored)
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#
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set -e # One error, it's over
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set -u # One variable unset, it's over
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FILES_ABSENT='/etc/cron.deny /etc/at.deny'
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FILES_PRESENT='/etc/cron.allow /etc/at.allow'
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PERMISSIONS='600'
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USER='root'
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GROUP='root'
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# This function will be called if the script status is on enabled / audit mode
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audit () {
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for FILE in $FILES_ABSENT; do
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does_file_exist $FILE
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if [ $FNRET = 0 ]; then
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crit "$FILE exists"
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else
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ok "$FILE is absent"
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fi
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done
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for FILE in $FILES_PRESENT; do
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does_file_exist $FILE
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if [ $FNRET != 0 ]; then
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crit "$FILE is absent"
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else
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has_file_correct_ownership $FILE $USER $GROUP
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if [ $FNRET = 0 ]; then
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ok "$FILE has correct ownership"
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else
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crit "$FILE is not $USER:$GROUP ownership set"
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fi
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has_file_correct_permissions $FILE $PERMISSIONS
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if [ $FNRET = 0 ]; then
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ok "$FILE has correct permissions"
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else
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crit "$FILE has not $PERMISSIONS permissions set"
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fi
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fi
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done
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}
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# This function will be called if the script status is on enabled mode
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apply () {
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for FILE in $FILES_ABSENT; do
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does_file_exist $FILE
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if [ $FNRET = 0 ]; then
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warn "$FILE exists"
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rm $FILE
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else
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ok "$FILE is absent"
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fi
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done
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for FILE in $FILES_PRESENT; do
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does_file_exist $FILE
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if [ $FNRET != 0 ]; then
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warn "$FILE is absent"
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touch $FILE
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fi
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has_file_correct_ownership $FILE $USER $GROUP
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if [ $FNRET = 0 ]; then
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ok "$FILE has correct ownership"
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else
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warn "$FILE is not $USER:$GROUP ownership set"
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chown $USER:$GROUP $FILE
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fi
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has_file_correct_permissions $FILE $PERMISSIONS
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if [ $FNRET = 0 ]; then
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ok "$FILE has correct permissions"
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else
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warn "$FILE has not $PERMISSIONS permissions set"
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chmod 0$PERMISSIONS $FILE
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fi
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done
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}
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# This function will check config parameters required
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check_config() {
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does_user_exist $USER
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if [ $FNRET != 0 ]; then
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crit "$USER does not exist"
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exit 128
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fi
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does_group_exist $GROUP
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if [ $FNRET != 0 ]; then
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crit "$GROUP does not exist"
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exit 128
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fi
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}
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# Source Root Dir Parameter
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if [ ! -r /etc/default/cis-hardenning ]; then
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echo "There is no /etc/default/cis-hardenning file, cannot source CIS_ROOT_DIR variable, aborting"
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exit 128
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else
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. /etc/default/cis-hardenning
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if [ -z $CIS_ROOT_DIR ]; then
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echo "No CIS_ROOT_DIR variable, aborting"
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fi
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fi
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# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
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[ -r $CIS_ROOT_DIR/lib/main.sh ] && . $CIS_ROOT_DIR/lib/main.sh
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