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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
100 lines
3.1 KiB
Bash
Executable File
100 lines
3.1 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 failed attempts lockout 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 failed attempts lockout is configured"
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MAX_ATTEMPT=""
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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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PASSWORD_LOCKOUT=0
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LOCKOUT_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 -Pi -- "^\h*deny\h*=\h*[1-$MAX_ATTEMPT]\b" /etc/security/faillock.conf; then
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crit "password lockout is misconfigured in /etc/security/faillock.conf"
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PASSWORD_LOCKOUT=1
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else
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info "password lockout is correctly configured in /etc/security/faillock.conf"
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fi
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for file in /usr/share/pam-configs/*; do
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if grep -Pi -- "^\h*auth\h+(requisite|required|sufficient)\h+pam_faillock\.so\h+([^#\n\r]+\h+)?deny\h*=\h*[0-9]+\b" "$file" >/dev/null 2>&1; then
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LOCKOUT_IN_PAM=0
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break
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fi
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done
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if [ "$LOCKOUT_IN_PAM" -eq 0 ]; then
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# configuration in pam is going to override the one in /etc/security/faillock.conf
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crit "password lockout is configured in /usr/share/pam-configs"
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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if [ "$PASSWORD_LOCKOUT" -ne 0 ]; then
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info "update 'deny' parameter in /etc/security/faillock.conf"
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sed -i '/^[[:space:]]?deny/d' /etc/security/faillock.conf
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echo "deny = $MAX_ATTEMPT" >>/etc/security/faillock.conf
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fi
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if [ "$LOCKOUT_IN_PAM" -eq 0 ]; then
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for file in /usr/share/pam-configs/*; do
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if grep -Pi -- "^\h*auth\h+(requisite|required|sufficient)\h+pam_faillock\.so\h+([^#\n\r]+\h+)?deny\h*=\h*[0-9]+\b" "$file" >/dev/null 2>&1; then
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info "Remove 'deny' configuration in $file"
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sed -E -i 's/deny[[:space:]]?=[[:space:]]?[0-9]+//g' "$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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# max attempts before locking the account
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MAX_ATTEMPT=5
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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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