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121 lines
3.7 KiB
Bash
Executable File
121 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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#
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# CIS Debian Hardening
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#
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#
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# 5.3.1 Ensure password creation requirements are configured (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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HARDENING_LEVEL=2
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DESCRIPTION="Set password creation requirement parameters using pam.cracklib."
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PACKAGE='libpam-pwquality'
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PATTERN_COMMON='pam_pwquality.so'
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FILE_COMMON='/etc/pam.d/common-password'
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OPTIONS=''
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FILE_QUALITY='/etc/security/pwquality.conf'
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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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is_pkg_installed $PACKAGE
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if [ $FNRET != 0 ]; then
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crit "$PACKAGE is not installed!"
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else
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ok "$PACKAGE is installed"
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does_pattern_exist_in_file $FILE_COMMON $PATTERN_COMMON
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if [ $FNRET = 0 ]; then
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ok "$PATTERN_COMMON is present in $FILE_COMMON"
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else
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crit "$PATTERN_COMMON is not present in $FILE_COMMON"
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fi
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for PW_OPT in $OPTIONS; do
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PW_PARAM=$(echo $PW_OPT | cut -d= -f1)
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PW_VALUE=$(echo $PW_OPT | cut -d= -f2)
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PATTERN="^$PW_PARAM[[:space:]]+=[[:space:]]+$PW_VALUE"
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does_pattern_exist_in_file $FILE_QUALITY "$PATTERN"
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if [ $FNRET = 0 ]; then
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ok "$PATTERN is present in $FILE_QUALITY"
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else
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crit "$PATTERN is not present in $FILE_QUALITY"
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fi
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done
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fi
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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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is_pkg_installed $PACKAGE
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if [ $FNRET = 0 ]; then
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ok "$PACKAGE is installed"
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else
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crit "$PACKAGE is absent, installing it"
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apt_install $PACKAGE
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fi
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does_pattern_exist_in_file $FILE_COMMON $PATTERN_COMMON
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if [ $FNRET = 0 ]; then
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ok "$PATTERN_COMMON is present in $FILE_COMMON"
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else
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warn "$PATTERN_COMMON is not present in $FILE_COMMON"
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add_line_file_before_pattern $FILE_COMMON "password requisite pam_pwquality.so retry=3" "# pam-auth-update(8) for details."
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fi
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for PW_OPT in $OPTIONS; do
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PW_PARAM=$(echo $PW_OPT | cut -d= -f1)
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PW_VALUE=$(echo $PW_OPT | cut -d= -f2)
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PATTERN="^$PW_PARAM[[:space:]]+=[[:space:]]+$PW_VALUE"
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does_pattern_exist_in_file $FILE_QUALITY $PATTERN
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if [ $FNRET = 0 ]; then
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ok "$PATTERN is present in $FILE_QUALITY"
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else
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warn "$PATTERN is not present in $FILE_QUALITY, adding it"
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does_pattern_exist_in_file $FILE_QUALITY "^$PW_PARAM"
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if [ $FNRET != 0 ]; then
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add_end_of_file $FILE_QUALITY "$PW_PARAM = $PW_VALUE"
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else
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info "Parameter $SSH_PARAM is present but with the wrong value -- Fixing"
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replace_in_file $FILE_QUALITY "^$PW_PARAM*.*" "$PW_PARAM = $PW_VALUE"
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fi
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fi
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done
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}
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# This function will create the config file for this check with default values
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create_config() {
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cat <<EOF
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status=audit
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# Put your custom configuration here
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OPTIONS="minlen=14 dcredit=-1 ucredit=-1 ocredit=-1 lcredit=-1"
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EOF
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_ROOT_DIR" ]; then
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echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
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echo "Cannot source CIS_ROOT_DIR variable, aborting."
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exit 128
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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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if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
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. $CIS_ROOT_DIR/lib/main.sh
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else
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echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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