harbian-audit/bin/hardening/9.2.14_pam_auth_without_nul...

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#!/bin/bash
#
# harbian audit 7/8/9 Hardening
#
#
# 9.2.14 Configure password without blank or null passwords (Scored)
# Author : Samson wen, Samson <sccxboy@gmail.com>
#
set -e # One error, it's over
set -u # One variable unset, it's over
HARDENING_LEVEL=3
PACKAGE='libpam-modules'
PATTERN='^auth.*pam_unix.so'
FILE='/etc/pam.d/common-auth'
KEYWORD='pam_unix.so'
OPTIONNAME1='nullok'
OPTIONNAME2='nullok_secure'
# This function will be called if the script status is on enabled / audit mode
audit () {
is_pkg_installed $PACKAGE
if [ $FNRET != 0 ]; then
crit "$PACKAGE is not installed!"
FNRET=1
else
ok "$PACKAGE is installed"
does_pattern_exist_in_file $FILE $PATTERN
if [ $FNRET = 0 ]; then
ok "$PATTERN is present in $FILE"
check_auth_option_nullok_by_pam $KEYWORD $OPTIONNAME1 $OPTIONNAME2
if [ $FNRET = 0 ]; then
ok "$OPTIONNAME1 is not configured"
elif [ $FNRET = 4 ]; then
crit "$OPTIONNAME1 is configured"
elif [ $FNRET = 5 ]; then
crit "$OPTIONNAME2 is configured"
fi
else
crit "$PATTERN is not present in $FILE"
FNRET=2
fi
fi
}
# This function will be called if the script status is on enabled mode
apply () {
if [ $FNRET = 0 ]; then
ok "$PACKAGE is installed"
elif [ $FNRET = 1 ]; then
crit "$PACKAGE is absent, installing it"
install_package $PACKAGE
elif [ $FNRET = 2 ]; then
ok "$PATTERN is not present in $FILE, not need add"
elif [ $FNRET = 3 ]; then
crit "$FILE is not exist, please check"
elif [ $FNRET = 4 ]; then
info "Delete option $OPTIONNAME1 from $FILE"
sed -i "s/$OPTIONNAME1//" $FILE
elif [ $FNRET = 5 ]; then
info "Delete option $OPTIONNAME2 from $FILE"
sed -i "s/$OPTIONNAME2//" $FILE
fi
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
. /etc/default/cis-hardening
fi
if [ -z "$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