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78 lines
2.2 KiB
Bash
Executable File
78 lines
2.2 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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# 2.2.15 Ensure Mail Transfer Agent is configured for Local-Only Mode (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="Configure Mail Transfert Agent for Local-Only Mode."
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HARDENING_EXCEPTION=mail
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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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info "Checking netport ports opened"
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RESULT=$($SUDO_CMD netstat -an | grep LIST | grep ":25[[:space:]]") || :
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RESULT=${RESULT:-}
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debug "Result is $RESULT"
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if [ -z "$RESULT" ]; then
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ok "Nothing listens on 25 port, probably unix socket configured"
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else
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info "Checking $RESULT"
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if $(grep -q "127.0.0.1" <<< $RESULT); then
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ok "MTA is configured to localhost only"
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else
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crit "MTA listens worldwide"
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fi
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply () {
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info "Checking netport ports opened"
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RESULT=$(netstat -an | grep LIST | grep ":25[[:space:]]") || :
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RESULT=${RESULT:-}
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debug "Result is $RESULT"
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if [ -z "$RESULT" ]; then
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ok "Nothing listens on 25 port, probably unix socket configured"
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else
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info "Checking $RESULT"
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if $(grep -q "127.0.0.1" <<< $RESULT); then
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ok "MTA is configured to localhost only"
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else
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warn "MTA listens worldwide, correct this considering your MTA"
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fi
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fi
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:
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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