mirror of
https://github.com/ovh/debian-cis.git
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93 lines
2.9 KiB
Bash
Executable File
93 lines
2.9 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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# 5.3.2 Ensure lockout for failed password attempts is 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=3
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DESCRIPTION="Set lockout for failed password attemps."
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PACKAGE='libpam-modules-bin'
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PATTERN_AUTH='^auth[[:space:]]*required[[:space:]]*pam_tally[2]?\.so'
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PATTERN_ACCOUNT='pam_tally[2]?\.so'
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FILE_AUTH='/etc/pam.d/common-auth'
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FILE_ACCOUNT='/etc/pam.d/common-account'
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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 $FILE_AUTH "$PATTERN_AUTH"
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if [ $FNRET = 0 ]; then
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ok "$PATTERN_AUTH is present in $FILE_AUTH"
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else
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crit "$PATTERN_AUTH is not present in $FILE_AUTH"
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fi
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does_pattern_exist_in_file $FILE_ACCOUNT "$PATTERN_ACCOUNT"
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if [ $FNRET = 0 ]; then
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ok "$PATTERN_ACCOUNT is present in $FILE_ACCOUNT"
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else
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crit "$PATTERN_ACCOUNT is not present in $FILE_ACCOUNT"
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fi
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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 $FILE_AUTH "$PATTERN_AUTH"
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if [ $FNRET = 0 ]; then
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ok "$PATTERN_AUTH is present in $FILE_AUTH"
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else
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warn "$PATTERN_AUTH is not present in $FILE_AUTH, adding it"
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add_line_file_before_pattern $FILE_AUTH "auth required pam_tally2.so onerr=fail audit silent deny=5 unlock_time=900" "# pam-auth-update(8) for details."
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fi
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does_pattern_exist_in_file $FILE_ACCOUNT "$PATTERN_ACCOUNT"
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if [ $FNRET = 0 ]; then
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ok "$PATTERN_ACCOUNT is present in $FILE_ACCOUNT"
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else
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warn "$PATTERN_ACCOUNT is not present in $FILE_ACCOUNT, adding it"
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add_line_file_before_pattern $FILE_ACCOUNT "account required pam_tally.so" "# pam-auth-update(8) for details."
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fi
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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