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V8.00.000.2025.06.17
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
This commit is contained in:
Marc S. Weidner
2025-10-15 23:37:48 +01:00
parent 3e934a017e
commit cbf472c4dd
10 changed files with 143 additions and 102 deletions
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70
func/cdi_4500_user/4510_accounts_hardening.sh
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@@ -15,7 +15,9 @@ guard_sourcing
#######################################
# Hardening accounts: Google TOTP, Wordlists, masking ttys, expiration of accounts.
# Globals:
# RECOVERY
# TARGET
# VAR_RUN_RECOVERY
# VAR_SETUP_PATH
# Arguments:
# None
@@ -26,24 +28,28 @@ accounts_hardening() {
### Declare Arrays, HashMaps, and Variables.
declare -a ary_security_pkgs=()
declare -r var_logfile="/root/.ciss/cdi/log/4510_accounts_hardening.log"
declare var_target="${TARGET}"
chroot_logger "${TARGET}${var_logfile}"
### Check for TARGET / RECOVERY.
[[ "${VAR_RUN_RECOVERY}" == "true" ]] && var_target="${RECOVERY}"
chroot_logger "${var_target}${var_logfile}"
### Installing Google TOTP, Wordlists.
ary_security_pkgs=( "libpam-google-authenticator" "wamerican" "wbritish" "wfrench" "wngerman" )
chroot_script "${TARGET}" "
chroot_script "${var_target}" "
export INITRD=No
apt-get install -y --no-install-recommends --no-install-suggests ${ary_security_pkgs[*]} 2>&1 | tee -a ${var_logfile}
"
### Preparing 2fa hardening.
install -d -m 0755 -o root -g root "${TARGET}/etc/ciss"
touch "${TARGET}/etc/ciss/2fa.users"
chmod 0640 "${TARGET}/etc/ciss/2fa.users"
install -d -m 0755 -o root -g root "${var_target}/etc/ciss"
touch "${var_target}/etc/ciss/2fa.users"
chmod 0640 "${var_target}/etc/ciss/2fa.users"
### Keep 'tty1' active, disable the rest.
# shellcheck disable=SC2016
chroot_script "${TARGET}" '
chroot_script "${var_target}" '
systemctl unmask getty@tty1.service
systemctl enable getty@tty1.service
for t in tty2 tty3 tty4 tty5 tty6; do
@@ -52,7 +58,7 @@ accounts_hardening() {
systemctl mask serial-getty@.service
'
chroot_script "${TARGET}" "
chroot_script "${var_target}" "
if [[ ! -f /etc/securetty ]]; then
touch /etc/securetty
chmod 0600 /etc/securetty
@@ -61,40 +67,44 @@ accounts_hardening() {
"
### Hardening file permissions.
chown root:root "${TARGET}/etc/passwd" "${TARGET}/etc/group"
chown root:shadow "${TARGET}/etc/shadow" "${TARGET}/etc/gshadow"
chmod 0644 "${TARGET}/etc/passwd" "${TARGET}/etc/group"
chmod 0640 "${TARGET}/etc/shadow" "${TARGET}/etc/gshadow"
chmod 0600 "${TARGET}/etc/security/access.conf"
chown root:root "${var_target}/etc/passwd" "${var_target}/etc/group"
chown root:shadow "${var_target}/etc/shadow" "${var_target}/etc/gshadow"
chmod 0644 "${var_target}/etc/passwd" "${var_target}/etc/group"
chmod 0640 "${var_target}/etc/shadow" "${var_target}/etc/gshadow"
chmod 0600 "${var_target}/etc/security/access.conf"
### Hardening '/etc/login.defs'.
mkdir -p "${TARGET}/root/.ciss/cdi/backup/etc"
mv "${TARGET}/etc/login.defs" "${TARGET}/root/.ciss/cdi/backup/etc/login.defs.bak"
insert_header "${TARGET}/etc/login.defs"
insert_comments "${TARGET}/etc/login.defs"
cat "${VAR_SETUP_PATH}/includes/target/etc/login.defs" >> "${TARGET}/etc/login.defs"
mkdir -p "${var_target}/root/.ciss/cdi/backup/etc"
mv "${var_target}/etc/login.defs" "${var_target}/root/.ciss/cdi/backup/etc/login.defs.bak"
insert_header "${var_target}/etc/login.defs"
insert_comments "${var_target}/etc/login.defs"
cat "${VAR_SETUP_PATH}/includes/target/etc/login.defs" >> "${var_target}/etc/login.defs"
### Hardening '/etc/security/pwquality.conf'.
mkdir -p "${TARGET}/root/.ciss/cdi/backup/etc/security"
mv "${TARGET}/etc/security/pwquality.conf" "${TARGET}/root/.ciss/cdi/backup/etc/security/pwquality.conf.bak"
insert_header "${TARGET}/etc/security/pwquality.conf"
insert_comments "${TARGET}/etc/security/pwquality.conf"
cat "${VAR_SETUP_PATH}/includes/target/etc/security/pwquality.cnf" >> "${TARGET}/etc/security/pwquality.conf"
mkdir -p "${var_target}/root/.ciss/cdi/backup/etc/security"
mv "${var_target}/etc/security/pwquality.conf" "${var_target}/root/.ciss/cdi/backup/etc/security/pwquality.conf.bak"
insert_header "${var_target}/etc/security/pwquality.conf"
insert_comments "${var_target}/etc/security/pwquality.conf"
cat "${VAR_SETUP_PATH}/includes/target/etc/security/pwquality.cnf" >> "${var_target}/etc/security/pwquality.conf"
### Hardening '/etc/security/access.conf'.
mv "${TARGET}/etc/security/access.conf" "${TARGET}/root/.ciss/cdi/backup/etc/security/access.conf.bak"
insert_header "${TARGET}/etc/security/access.conf"
insert_comments "${TARGET}/etc/security/access.conf"
cat "${VAR_SETUP_PATH}/includes/target/etc/security/access.cnf" >> "${TARGET}/etc/security/access.conf"
mv "${var_target}/etc/security/access.conf" "${var_target}/root/.ciss/cdi/backup/etc/security/access.conf.bak"
insert_header "${var_target}/etc/security/access.conf"
insert_comments "${var_target}/etc/security/access.conf"
cat "${VAR_SETUP_PATH}/includes/target/etc/security/access.cnf" >> "${var_target}/etc/security/access.conf"
### Hardening password expiration; defaults to 16,384 days.
install -m 0700 -o root -g root "${VAR_SETUP_PATH}/includes/chroot/hooks/4510_password_expiration.hooks.sh" \
"${TARGET}/root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh"
"${var_target}/root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh"
if ! chroot_script "${var_target}" "/root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh" "emergency"; then
do_log "warn" "file_only" "4510() Command: [chroot_script ${var_target} /root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh emergency] failed."
if ! chroot_script "${TARGET}" "/root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh" "emergency"; then
do_log "warn" "file_only" "4510() Command: [chroot_script ${TARGET} /root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh emergency] failed."
else
do_log "debug" "file_only" "4510() Command: [chroot_script ${TARGET} /root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh emergency] successful."
do_log "debug" "file_only" "4510() Command: [chroot_script ${var_target} /root/.ciss/cdi/hooks/4510_password_expiration.hooks.sh emergency] successful."
fi
guard_dir && return 0