harbian-audit/bin/hardening/9.2.2_enable_minlen_crackli...

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#!/bin/bash
#
# harbian audit 7/8/9 Hardening
#
#
# 9.2.2 Set Password Creation Requirement Parameters Using pam_cracklib: audit minlen option (Scored)
# Authors : Samson wen, Samson <sccxboy@gmail.com>
#
set -e # One error, it's over
set -u # One variable unset, it's over
HARDENING_LEVEL=2
PACKAGE='libpam-cracklib'
PAMLIBNAME='pam_cracklib.so'
PATTERN='^password.*pam_cracklib.so'
FILE='/etc/pam.d/common-password'
OPTIONNAME='minlen'
# condition
CONDT_VAL=14
# 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_password_by_pam $FILE $PAMLIBNAME $OPTIONNAME ge $CONDT_VAL
if [ $FNRET = 0 ]; then
ok "$OPTIONNAME set condition is $CONDT_VAL"
else
crit "$OPTIONNAME set condition is $CONDT_VAL"
#FNRET=3
fi
else
crit "$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"
apt_install $PACKAGE
elif [ $FNRET = 2 ]; then
crit "$PATTERN is not present in $FILE, add default config to $FILE"
add_line_file_before_pattern $FILE "password requisite pam_cracklib.so retry=3 minlen=8 difok=3" "# pam-auth-update(8) for details."
elif [ $FNRET = 3 ]; then
crit "$FILE is not exist, please check"
elif [ $FNRET = 4 ]; then
crit "$OPTIONNAME is not conf"
add_option_to_password_check $FILE $PAMLIBNAME "$OPTIONNAME=$CONDT_VAL"
elif [ $FNRET = 5 ]; then
crit "$OPTIONNAME set is not match legally, reset it to $CONDT_VAL"
reset_option_to_password_check $FILE $PAMLIBNAME "$OPTIONNAME" "$CONDT_VAL"
fi
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
. /etc/default/cis-hardening
fi
if [ -z "$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