V8.00.000.2025.06.17

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

func/cdi_4500_user/4501_accounts_preparation_ciss.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+guard_sourcing
+
+#######################################
+# Account preparation CISS specific.
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+accounts_preparation_ciss() {
+  ### Declare Arrays, HashMaps, and Variables.
+
+  guard_dir && return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f accounts_preparation_ciss
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

func/cdi_4500_user/4502_accounts_preparation_physnet.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+guard_sourcing
+
+#######################################
+# Account preparation PHYSNET specific.
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+accounts_preparation_physnet() {
+  ### Declare Arrays, HashMaps, and Variables.
+
+  guard_dir && return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f accounts_preparation_physnet
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

func/cdi_4500_user/4521_accounts_setup_ciss.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+guard_sourcing
+
+#######################################
+# Account setup CISS specific.
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+accounts_setup_ciss() {
+  ### Declare Arrays, HashMaps, and Variables.
+
+  guard_dir && return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f accounts_setup_ciss
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

func/cdi_4500_user/4522_accounts_setup_physnet.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+guard_sourcing
+
+#######################################
+# Account setup PHYSNET specific.
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   0: on success
+#######################################
+accounts_setup_physnet() {
+  ### Declare Arrays, HashMaps, and Variables.
+
+  guard_dir && return 0
+}
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f accounts_setup_physnet
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh

includes/target/etc/sysctl.d/99_local.hardened

@@ -278,15 +278,6 @@ net.ipv4.conf.all.forwarding=0
 net.ipv6.conf.all.accept_ra=0
 net.ipv6.conf.default.accept_ra=0
 
-###########################################################################################
-# These parameters relate to secure ICMP redirects. ICMP redirects are messages that a
-# router sends to a device to inform it that there is a better route for the data traffic.
-# This setting prevents the system from responding to redirects that have been spoofed by
-# potential attackers to redirect traffic (e.g., for man-in-the-middle attacks).
-###########################################################################################
-net.ipv4.conf.all.secure_redirects=1
-net.ipv4.conf.default.secure_redirects=1
-
 ###########################################################################################
 # This setting prevents the disclosure of TCP timestamps that can be used for system
 # fingerprinting:

meta_loader_func.sh

@@ -98,8 +98,12 @@ source_guard "./func/cdi_4400_hardening/4490_hardening_virus.sh"
 
 ### cdi_4500_user
 source_guard "./func/cdi_4500_user/4500_accounts_preparation.sh"
+source_guard "./func/cdi_4500_user/4501_accounts_preparation_ciss.sh"
+source_guard "./func/cdi_4500_user/4502_accounts_preparation_physnet.sh"
 source_guard "./func/cdi_4500_user/4510_accounts_hardening.sh"
 source_guard "./func/cdi_4500_user/4520_accounts_setup.sh"
+source_guard "./func/cdi_4500_user/4521_accounts_setup_ciss.sh"
+source_guard "./func/cdi_4500_user/4522_accounts_setup_physnet.sh"
 
 ### cdi_4600_packages
 source_guard "./func/cdi_4600_packages/4600_installation_packages.sh"