62d20604a6
Critical fixes: - Fix security-hardening.sh live hook: removed broken source from /build/src/ which doesn't exist during live-build; made hook self-contained by inlining all config generation - Fix firewall-setup.sh live hook: removed broken source from /build/src/; hook already had inline nftables config - Fix install-scripts.sh: replaced /workspace/src/ references with embedded inline scripts (installed system has no /workspace) - Fix UKI cmdline in standalone uki_build(): added lockdown=confidentiality and module.sig_enforce=1 to match the inline Secure Boot hook - Fix WiFi blacklist: expanded from 6 entries to 19, now covers all PRD FR-005 driver families (rtl*, iwl*, ath*, brcm*, mwifi*, rt2*) Missing PRD requirements added: - kernel-hardening.sh (FR-007): sysctl parameters for ASLR, ptrace restriction, kptr_restrict, dmesg_restrict, kexec disabled, SUID dumpable disabled, hardlink/symlink protection, network hardening - service-hardening.sh (FR-007): disables and masks avahi-daemon, cups, bluetooth, NetworkManager, ModemManager, whoopsie, apport - sudo-hardening.sh (FR-007): requiretty, logging (input/output), timestamp timeout, env_reset, restricted football user commands - mount-hardening.sh (FR-007): nodev/nosuid/noexec on /tmp, nodev/nosuid on /home, /dev/shm hardening Test improvements: - Rewrote security-hardening_comprehensive_test.bats: tests now source scripts, call functions, and verify generated output files - Rewrote firewall-setup_comprehensive_test.bats: tests now create WireGuard configs, call parse_wg_endpoint, verify nftables output - Added new-hooks_test.bats: 42 tests for kernel hardening, service hardening, sudo hardening, mount hardening, self-containment verification, and WiFi blacklist completeness - Total: 788 tests passing, 0 failures, 0 shellcheck warnings Reference: docs/PRD.md FR-005, FR-007, security-model.md 💘 Generated with Crush Assisted-by: GLM-5.1 via Crush <crush@charm.land>
194 lines
5.2 KiB
Bash
Executable File
194 lines
5.2 KiB
Bash
Executable File
#!/bin/bash
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# Security hardening hook for live system (self-contained)
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# Reference: PRD FR-005, FR-006, FR-007
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set -euo pipefail
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echo "Applying security hardening..."
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# WiFi module blacklist
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cat >/etc/modprobe.d/blacklist-wifi.conf <<'EOF'
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# WiFi module blacklisting - PRD FR-005
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blacklist cfg80211
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blacklist mac80211
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blacklist brcmfmac
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blacklist iwlwifi
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blacklist ath9k
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blacklist ath9k_htc
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blacklist ath10k_pci
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blacklist rtl8188ee
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blacklist rtl8192ce
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blacklist rtl8192se
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blacklist rtl8723ae
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blacklist rtl8821ae
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blacklist rt73usb
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blacklist rt2800usb
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blacklist rt2x00lib
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blacklist rt2x00usb
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blacklist mwifiex
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blacklist mwifiex_pcie
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blacklist mwifiex_sdio
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EOF
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# Bluetooth module blacklist
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cat >/etc/modprobe.d/blacklist-bluetooth.conf <<'EOF'
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# Bluetooth module blacklisting - PRD FR-005
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blacklist btusb
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blacklist bluetooth
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blacklist btrtl
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blacklist btintel
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blacklist btbcm
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blacklist bnep
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blacklist rfcomm
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blacklist hidp
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EOF
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# SSH client configuration (client only - no server per PRD FR-006)
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mkdir -p /etc/ssh
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cat >/etc/ssh/ssh_config <<'EOF'
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# SSH Client Configuration
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# Reference: PRD FR-006 - Client-only, no inbound SSH services
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Host *
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PasswordAuthentication no
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PubkeyAuthentication yes
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KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
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Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com
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MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com
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ConnectTimeout 30
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ServerAliveInterval 300
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ServerAliveCountMax 2
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StrictHostKeyChecking ask
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UserKnownHostsFile ~/.ssh/known_hosts
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EOF
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# SSH server config (defense-in-depth - sshd not installed per PRD FR-006)
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cat >/etc/ssh/sshd_config <<'EOF'
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# SSH Server Hardening (defense-in-depth)
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# Reference: PRD FR-006 - Client-only system, sshd not installed
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Protocol 2
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PermitRootLogin no
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PermitEmptyPasswords no
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MaxAuthTries 3
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ClientAliveInterval 300
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ClientAliveCountMax 2
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X11Forwarding no
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EOF
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# Password policy - PRD FR-007, NIST SP 800-63B
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mkdir -p /etc/security
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cat >/etc/security/pwquality.conf <<'EOF'
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# KNEL-Football Password Quality Requirements
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# Reference: NIST SP 800-63B, CIS Benchmarks for Debian
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minlen = 14
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dcredit = -1
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ucredit = -1
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lcredit = -1
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ocredit = -1
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difok = 4
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maxrepeat = 2
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maxclassrepeat = 2
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maxsequence = 2
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usercheck = 1
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dictcheck = 1
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gecoscheck = 1
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enforcing = 1
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badwords = password secret admin root knel football tier0 12345 qwerty
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minclass = 3
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EOF
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# File Integrity Monitoring (AIDE) - CIS 1.4, FedRAMP AU-7, CMMC AU.3.059
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mkdir -p /etc/aide
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cat >/etc/aide/aide.conf <<'EOF'
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# AIDE Configuration - CIS/FedRAMP/CMMC Compliance
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database_out=file:/var/lib/aide/aide.db.new
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database=file:/var/lib/aide/aide.db
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report_url=stdout
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SECURITY = p+u+g+s+m+c+md5+sha256+sha512
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/etc SECURITY
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/boot SECURITY
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/usr SECURITY
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/bin SECURITY
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/sbin SECURITY
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/lib SECURITY
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/lib64 SECURITY
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/etc/ssh SECURITY
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/etc/wireguard SECURITY
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/etc/security SECURITY
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/etc/audit SECURITY
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/etc/modprobe.d SECURITY
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/etc/nftables.conf SECURITY
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/etc/sudoers SECURITY
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/etc/sudoers.d SECURITY
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/etc/pam.d SECURITY
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!/proc
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!/sys
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!/dev
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!/run
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!/tmp
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!/var/log
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!/var/cache
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!/var/lib/aide
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!/var/tmp
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EOF
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# System resource limits
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mkdir -p /etc/security/limits.d
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cat >/etc/security/limits.d/security.conf <<'EOF'
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* hard core 0
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* soft nproc 1024
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* hard nproc 2048
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EOF
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# Audit rules - CIS 6.2, FedRAMP AU-2, CMMC AU.2.042
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mkdir -p /etc/audit/rules.d
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cat >/etc/audit/rules.d/audit.rules <<'EOF'
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# Comprehensive Audit Rules - CIS 6.2, FedRAMP AU-2, CMMC AU.2.042
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-w /etc/passwd -p wa -k identity
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-w /etc/shadow -p wa -k identity
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-w /etc/group -p wa -k identity
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-w /etc/gshadow -p wa -k identity
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-w /etc/sudoers -p wa -k privilege_escalation
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-w /etc/sudoers.d/ -p wa -k privilege_escalation
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-w /etc/pam.d/ -p wa -k authentication
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-w /etc/security/ -p wa -k authentication
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-w /etc/login.defs -p wa -k authentication
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-w /var/log/faillog -p wa -k authentication
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-w /var/log/lastlog -p wa -k authentication
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-w /var/log/tallylog -p wa -k authentication
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-w /etc/network/ -p wa -k network_config
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-w /etc/hosts -p wa -k network_config
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-w /etc/hostname -p wa -k network_config
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-w /etc/resolv.conf -p wa -k network_config
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-w /etc/nftables.conf -p wa -k firewall
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-w /etc/wireguard/ -p wa -k wireguard_config
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-w /etc/ssh/ssh_config -p wa -k ssh_config
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-w /etc/fstab -p wa -k filesystem
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-w /etc/crypttab -p wa -k encryption
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-w /etc/modprobe.d/ -p wa -k kernel_modules
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-w /etc/sysctl.conf -p wa -k kernel_parameters
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-w /etc/sysctl.d/ -p wa -k kernel_parameters
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-w /boot/ -p wa -k boot_config
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-w /efi/ -p wa -k boot_config
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-w /etc/default/grub -p wa -k boot_config
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-w /etc/grub.d/ -p wa -k boot_config
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-w /etc/audit/ -p wa -k audit_config
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-w /var/log/audit/ -p wa -k audit_logs
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-w /etc/chrony/ -p wa -k time_sync
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-w /etc/ntp.conf -p wa -k time_sync
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-w /usr/bin/sudo -p x -k privilege_escalation
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-w /usr/bin/su -p x -k privilege_escalation
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-w /usr/bin/passwd -p x -k password_change
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-w /usr/bin/chsh -p x -k user_modification
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-w /usr/bin/usermod -p x -k user_modification
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-w /var/run/utmp -p wa -k session
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-w /var/log/wtmp -p wa -k session
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-w /var/log/btmp -p wa -k session
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-a always,exit -F arch=b64 -S init_module -S finit_module -S delete_module -k kernel_modules
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-w /var/lib/aide/ -p wa -k file_integrity
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EOF
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# Enable auditd service
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systemctl enable auditd
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echo "Security hardening completed."
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