diff --git a/bin/hardening/1.3.1_install_sudo.sh b/bin/hardening/1.3.1_install_sudo.sh
new file mode 100755
index 0000000..b2a99f7
--- /dev/null
+++ b/bin/hardening/1.3.1_install_sudo.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+
+# run-shellcheck
+#
+# CIS Debian Hardening
+#
+
+#
+# 1.3.1 Ensure sudo is installed (Scored)
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+# shellcheck disable=2034
+HARDENING_LEVEL=2
+# shellcheck disable=2034
+DESCRIPTION="Install sudo to permit users to execute command as superuser or as another user."
+
+PACKAGE='sudo'
+
+# This function will be called if the script status is on enabled / audit mode
+audit() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
+        ok "$PACKAGE is installed"
+    fi
+}
+
+# This function will be called if the script status is on enabled mode
+apply() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" = 0 ]; then
+        ok "$PACKAGE is installed"
+    else
+        crit "$PACKAGE is absent, installing it"
+        apt_install "$PACKAGE"
+    fi
+}
+
+# This function will check config parameters required
+check_config() {
+    :
+}
+
+# Source Root Dir Parameter
+if [ -r /etc/default/cis-hardening ]; then
+    # shellcheck source=../../debian/default
+    . /etc/default/cis-hardening
+fi
+if [ -z "$CIS_ROOT_DIR" ]; then
+    echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
+    echo "Cannot source CIS_ROOT_DIR variable, aborting."
+    exit 128
+fi
+
+# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
+if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
+    # shellcheck source=../../lib/main.sh
+    . "$CIS_ROOT_DIR"/lib/main.sh
+else
+    echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
+    exit 128
+fi
diff --git a/bin/hardening/1.3.2_pty_sudo.sh b/bin/hardening/1.3.2_pty_sudo.sh
new file mode 100755
index 0000000..c61d6ef
--- /dev/null
+++ b/bin/hardening/1.3.2_pty_sudo.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+
+# run-shellcheck
+#
+# CIS Debian Hardening
+#
+
+#
+# 1.3.2 Ensure sudo commands use pty (Scored)
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+# shellcheck disable=2034
+HARDENING_LEVEL=2
+# shellcheck disable=2034
+DESCRIPTION="Ensure sudo can only be run from a pseudo pty."
+
+PATTERN='^\s*Defaults\s+([^#]+,\s*)?use_pty(,\s+\S+\s*)*(\s+#.*)?$'
+
+# This function will be called if the script status is on enabled / audit mode
+audit() {
+    FOUND=0
+    for f in /etc/{sudoers,sudoers.d/*}; do
+        does_pattern_exist_in_file_nocase "$f" "$PATTERN"
+        if [ "$FNRET" = 0 ]; then
+            FOUND=1
+        fi
+    done
+
+    if [[ "$FOUND" = 1 ]]; then
+        ok "Defaults use_pty found in sudoers file"
+    else
+        crit "Defaults use_pty not found in sudoers files"
+    fi
+}
+
+# This function will be called if the script status is on enabled mode
+apply() {
+    FOUND=0
+    for f in /etc/{sudoers,sudoers.d/*}; do
+        does_pattern_exist_in_file_nocase "$f" "$PATTERN"
+        if [ "$FNRET" = 0 ]; then
+            FOUND=1
+        fi
+    done
+
+    if [[ "$FOUND" = 1 ]]; then
+        ok "Defaults use_pty found in sudoers file"
+    else
+        warn "Defaults use_pty not found in sudoers files, fixing"
+        add_line_file_before_pattern /etc/sudoers "Defaults        use_pty" "# Host alias specification"
+    fi
+}
+
+# This function will check config parameters required
+check_config() {
+    :
+}
+
+# Source Root Dir Parameter
+if [ -r /etc/default/cis-hardening ]; then
+    # shellcheck source=../../debian/default
+    . /etc/default/cis-hardening
+fi
+if [ -z "$CIS_ROOT_DIR" ]; then
+    echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
+    echo "Cannot source CIS_ROOT_DIR variable, aborting."
+    exit 128
+fi
+
+# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
+if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
+    # shellcheck source=../../lib/main.sh
+    . "$CIS_ROOT_DIR"/lib/main.sh
+else
+    echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
+    exit 128
+fi
diff --git a/bin/hardening/1.3.3_logfile_sudo.sh b/bin/hardening/1.3.3_logfile_sudo.sh
new file mode 100755
index 0000000..2ff1416
--- /dev/null
+++ b/bin/hardening/1.3.3_logfile_sudo.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+
+# run-shellcheck
+#
+# CIS Debian Hardening
+#
+
+#
+# 1.3.3 Ensure sudo log file exists (Scored)
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+# shellcheck disable=2034
+HARDENING_LEVEL=2
+# shellcheck disable=2034
+DESCRIPTION="Ensure sudo log files exists."
+
+PATTERN="^\s*Defaults\s+logfile=\S+"
+LOGFILE="/var/log/sudo.log"
+
+# This function will be called if the script status is on enabled / audit mode
+audit() {
+    FOUND=0
+    for f in /etc/{sudoers,sudoers.d/*}; do
+        does_pattern_exist_in_file_nocase "$f" "$PATTERN"
+        if [ "$FNRET" = 0 ]; then
+            FOUND=1
+        fi
+    done
+
+    if [[ "$FOUND" = 1 ]]; then
+        ok "Defaults log file found in sudoers file"
+    else
+        crit "Defaults log file not found in sudoers files"
+    fi
+}
+# This function will be called if the script status is on enabled mode
+apply() {
+    FOUND=0
+    for f in /etc/{sudoers,sudoers.d/*}; do
+        does_pattern_exist_in_file_nocase "$f" "$PATTERN"
+        if [ "$FNRET" = 0 ]; then
+            FOUND=1
+        fi
+    done
+
+    if [[ "$FOUND" = 1 ]]; then
+        ok "Defaults log file found in sudoers file"
+    else
+        warn "Defaults log file not found in sudoers files, fixing"
+        add_line_file_before_pattern /etc/sudoers "Defaults        logfile=\"$LOGFILE\"" "# Host alias specification"
+    fi
+}
+
+# This function will check config parameters required
+check_config() {
+    :
+}
+
+# Source Root Dir Parameter
+if [ -r /etc/default/cis-hardening ]; then
+    # shellcheck source=../../debian/default
+    . /etc/default/cis-hardening
+fi
+if [ -z "$CIS_ROOT_DIR" ]; then
+    echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
+    echo "Cannot source CIS_ROOT_DIR variable, aborting."
+    exit 128
+fi
+
+# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
+if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
+    # shellcheck source=../../lib/main.sh
+    . "$CIS_ROOT_DIR"/lib/main.sh
+else
+    echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
+    exit 128
+fi
diff --git a/tests/hardening/1.3.1_install_sudo.sh b/tests/hardening/1.3.1_install_sudo.sh
new file mode 100644
index 0000000..38538e1
--- /dev/null
+++ b/tests/hardening/1.3.1_install_sudo.sh
@@ -0,0 +1,18 @@
+# shellcheck shell=bash
+# run-shellcheck
+test_audit() {
+    describe Running on blank host
+    register_test retvalshouldbe 0
+    dismiss_count_for_test
+    # shellcheck disable=2154
+    run blank /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
+
+    describe correcting situation
+    sed -i 's/audit/enabled/' /opt/debian-cis/etc/conf.d/"${script}".cfg
+    /opt/debian-cis/bin/hardening/"${script}".sh --apply || true
+
+    describe Checking resolved state
+    register_test retvalshouldbe 0
+    register_test contain "sudo is installed"
+    run resolved /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
+}
diff --git a/tests/hardening/1.3.2_pty_sudo.sh b/tests/hardening/1.3.2_pty_sudo.sh
new file mode 100644
index 0000000..2827308
--- /dev/null
+++ b/tests/hardening/1.3.2_pty_sudo.sh
@@ -0,0 +1,18 @@
+# shellcheck shell=bash
+# run-shellcheck
+test_audit() {
+    describe Running on blank host
+    register_test retvalshouldbe 0
+    dismiss_count_for_test
+    # shellcheck disable=2154
+    run blank /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
+
+    describe correcting situation
+    sed -i 's/audit/enabled/' /opt/debian-cis/etc/conf.d/"${script}".cfg
+    /opt/debian-cis/bin/hardening/"${script}".sh --apply || true
+
+    describe Checking resolved state
+    register_test retvalshouldbe 0
+    register_test contain "Defaults use_pty found in sudoers file"
+    run resolved /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
+}
diff --git a/tests/hardening/1.3.3_logfile_sudo.sh b/tests/hardening/1.3.3_logfile_sudo.sh
new file mode 100644
index 0000000..033e80c
--- /dev/null
+++ b/tests/hardening/1.3.3_logfile_sudo.sh
@@ -0,0 +1,18 @@
+# shellcheck shell=bash
+# run-shellcheck
+test_audit() {
+    describe Running on blank host
+    register_test retvalshouldbe 0
+    dismiss_count_for_test
+    # shellcheck disable=2154
+    run blank /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
+
+    describe correcting situation
+    sed -i 's/audit/enabled/' /opt/debian-cis/etc/conf.d/"${script}".cfg
+    /opt/debian-cis/bin/hardening/"${script}".sh --apply || true
+
+    describe Checking resolved state
+    register_test retvalshouldbe 0
+    register_test contain "Defaults log file found in sudoers file"
+    run resolved /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
+}