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67df4da781
Adding DESCRIPTION field in tests and [INFO] DESCRIPTION in main Update README with --batch mode info Add --batch mode in hardening.sh Change summary to make it oneliner when batch mode AUDIT_SUMMARY PASSED_CHECKS:95 RUN_CHECKS:191 TOTAL_CHECKS_AVAIL:191 CONFORMITY_PERCENTAGE:49.74
109 lines
3.4 KiB
Bash
Executable File
109 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# CIS Debian 7/8 Hardening
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#
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#
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# 10.2 Disable System Accounts (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="Disable system accounts, preventing them from interactive login."
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SHELL='/bin/false'
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FILE='/etc/passwd'
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RESULT=''
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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 if admin accounts have a login shell different than $SHELL"
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RESULT=$(egrep -v "^\+" $FILE | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 && $7!="/usr/sbin/nologin" && $7!="/bin/false") {print}')
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IFS=$'\n'
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for LINE in $RESULT; do
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debug "line : $LINE"
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ACCOUNT=$( echo $LINE | cut -d: -f 1 )
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debug "Account : $ACCOUNT"
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debug "Exceptions : $EXCEPTIONS"
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debug "echo \"$EXCEPTIONS\" | grep -q $ACCOUNT"
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if echo "$EXCEPTIONS" | grep -q $ACCOUNT; then
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debug "$ACCOUNT is confirmed as an exception"
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RESULT=$(sed "s!$LINE!!" <<< "$RESULT")
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else
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debug "$ACCOUNT not found in exceptions"
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fi
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done
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if [ ! -z "$RESULT" ]; then
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crit "Some admin accounts don't have $SHELL as their login shell"
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crit "$RESULT"
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else
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ok "All admin accounts deactivated"
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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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RESULT=$(egrep -v "^\+" $FILE | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 && $7!="/usr/sbin/nologin" && $7!="/bin/false") {print}')
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IFS=$'\n'
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for LINE in $RESULT; do
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debug "line : $LINE"
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ACCOUNT=$( echo $LINE | cut -d: -f 1 )
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debug "Account : $ACCOUNT"
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debug "Exceptions : $EXCEPTIONS"
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debug "echo \"$EXCEPTIONS\" | grep -q $ACCOUNT"
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if echo "$EXCEPTIONS" | grep -q $ACCOUNT; then
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debug "$ACCOUNT is confirmed as an exception"
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RESULT=$(sed "s!$LINE!!" <<< "$RESULT")
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else
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debug "$ACCOUNT not found in exceptions"
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fi
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done
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if [ ! -z "$RESULT" ]; then
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warn "Some admin accounts don't have $SHELL as their login shell -- Fixing"
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warn "$RESULT"
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for USER in $( echo "$RESULT" | cut -d: -f 1 ); do
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info "Setting $SHELL as $USER login shell"
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usermod -s $SHELL $USER
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done
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else
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ok "All admin accounts deactivated, nothing to apply"
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fi
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}
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# This function will create the config file for this check with default values
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create_config() {
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cat <<EOF
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status=disabled
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# Put here your exceptions concerning admin accounts shells separated by spaces
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EXCEPTIONS=""
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EOF
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}
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# This function will check config parameters required
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check_config() {
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if [ -z "$EXCEPTIONS" ]; then
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EXCEPTIONS="@"
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fi
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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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