harbian-audit/bin/hardening/2.12_removable_device_noexe...

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#!/bin/bash
#
# harbian-audit for Debian GNU/Linux 7/8/9 Hardening
# Modify by: Samson-W (sccxboy@gmail.com)
#
#
# 2.12 Add noexec Option to Removable Media Partitions (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
HARDENING_LEVEL=2
# Fair warning, it only checks /media.* like partition in fstab, it's not exhaustive
# Quick factoring as many script use the same logic
PARTITION_PATTERN="/media\S*"
OPTION="noexec"
# This function will be called if the script status is on enabled / audit mode
audit () {
info "Verifying if there is $PARTITION_PATTERN like partition"
FNRET=0
is_a_partition "$PARTITION_PATTERN"
if [ $FNRET -gt 0 ]; then
ok "There is no partition like $PARTITION_PATTERN"
FNRET=0
else
MEDIA_PARNAME=$(grep "[[:space:]]${PARTITION_PATTERN}[[:space:]]*" /etc/fstab | grep -v "^#" | awk '{print $2}')
info "detected $PARTITION_PATTERN like"
has_mount_option $MEDIA_PARNAME $OPTION
if [ $FNRET -gt 0 ]; then
crit "$MEDIA_PARNAME has no option $OPTION in fstab!"
FNRET=1
else
ok "$MEDIA_PARNAME has $OPTION in fstab"
fi
fi
}
# This function will be called if the script status is on enabled mode
apply () {
if [ $FNRET = 0 ]; then
ok "$PARTITION_PATTERN is correctly set"
elif [ $FNRET = 1 ]; then
MEDIA_PARNAME=$(grep "[[:space:]]${PARTITION_PATTERN}[[:space:]]*" /etc/fstab | grep -v "^#" | awk '{print $2}')
info "Adding $OPTION to fstab"
add_option_to_fstab $MEDIA_PARNAME $OPTION
fi
}
# This function will check config parameters required
check_config() {
# No param for this script
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
. /etc/default/cis-hardening
fi
if [ -z "$CIS_ROOT_DIR" ]; then
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
echo "Cannot source CIS_ROOT_DIR variable, aborting."
exit 128
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
. $CIS_ROOT_DIR/lib/main.sh
else
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
exit 128
fi