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https://github.com/ovh/debian-cis.git
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37b4f5982e
- sudo_re_authenticate.sh -> 5.2.5 - pam_pwhistory_enabled.sh -> 5.3.2.4 - pam_faillock_enabled.sh -> 5.3.2.2 This is an updated version of enable_lockout_failed_password.sh (renamed) - pam_unix_enabled.sh -> 5.3.2.1 - password_failed_lockout.sh -> 5.3.3.1.1 - password_unlock_time.sh -> 5.3.3.1.2 - password_root_unlock.sh -> 5.3.3.1.3
106 lines
3.2 KiB
Bash
Executable File
106 lines
3.2 KiB
Bash
Executable File
#!/bin/bash
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# run-shellcheck
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#
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# CIS Debian Hardening
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#
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#
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# Ensure password unlock time is configured (Automated)
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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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# shellcheck disable=2034
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HARDENING_LEVEL=2
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# shellcheck disable=2034
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DESCRIPTION="Ensure password unlock time is configured"
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CONF_FILE="/etc/security/faillock.conf"
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MAX_UNLOCK_TIME=""
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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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UNLOCK_TIME_VALID=1
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UNLOCK_IN_PAM=1
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# we want it to be set expliciteley, to avoid a default value changing from one version to another
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if grep -E "^[[:space:]]?unlock_time" "$CONF_FILE"; then
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local current_unlock_time=""
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current_unlock_time=$(awk -F '=' '/^[[:space:]]?unlock_time/ {print $2}' "$CONF_FILE" | sed 's/\ //g')
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if [ "$current_unlock_time" -le "$MAX_UNLOCK_TIME" ]; then
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UNLOCK_TIME_VALID=0
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fi
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fi
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if [ "$UNLOCK_TIME_VALID" -eq 0 ]; then
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ok "password 'unlock_time' is correctly configured"
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else
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crit "password 'unlock_time' is not correctly configured"
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fi
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for file in /usr/share/pam-configs/*; do
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if grep -Pi -- '\bpam_faillock\.so\h+([^#\n\r]+\h+)?unlock_time\b' "$file" >/dev/null 2>&1; then
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UNLOCK_IN_PAM=0
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break
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fi
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done
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if [ "$UNLOCK_IN_PAM" -eq 0 ]; then
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# configuration in pam is going to override the one in /etc/security/faillock.conf
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crit "password unlock_time is configured in /usr/share/pam-configs"
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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if [ "$UNLOCK_TIME_VALID" -ne 0 ]; then
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sed -E -i '/^[[:space:]]?unlock_time/d' "$CONF_FILE"
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echo "unlock_time = $MAX_UNLOCK_TIME" >>"$CONF_FILE"
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fi
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if [ "$UNLOCK_IN_PAM" -eq 0 ]; then
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for file in /usr/share/pam-configs/*; do
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if grep -Pi -- '\bpam_faillock\.so\h+([^#\n\r]+\h+)?unlock_time\b' "$file" >/dev/null 2>&1; then
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info "Remove 'unlock_time' configuration in $file"
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sed -E -i 's/unlock_time[[:space:]]?=[[:space:]]?[0-9]+//g' "$file"
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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 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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# time in seconds before unlocking account
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# 0 = never, which can lead to some kind of denial of service
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MAX_UNLOCK_TIME=900
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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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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_LIB_DIR" ]; then
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echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
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echo "Cannot source CIS_LIB_DIR variable, aborting."
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exit 128
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fi
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# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
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if [ -r "${CIS_LIB_DIR}"/main.sh ]; then
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# shellcheck source=../../lib/main.sh
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. "${CIS_LIB_DIR}"/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_LIB_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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