fix that damn sign!!!

2023-08-09 15:52:44 +03:00
parent 7cbae4d58f
commit 6be027cf68
2 changed files with 126 additions and 66 deletions
--- a/170
+++ b/170
@@ -19,7 +19,7 @@ trap 'printf "Error on line %d with signal %s" "$LINENO" "$?"' ERR # Exit on err
 trap 'printf "Interrupted on line %d with signal %s" "$LINENO" "$?"' INT SIGHUP SIGINT SIGTERM

 # Get script name using parameter expansion to not spawn a new subprocess
-SCRIPT_NAME="${0##*/}"
+##SCRIPT_NAME="${0##*/}"

 # We will be using printf instead of echo because it is more standardised.
 # Also we will be using the test command's functionality as
@@ -74,8 +74,12 @@ function install_packages {
 	package_manager="$(get_package_manager)" # Get the package manager
 	case "$package_manager" in               # Use case to check for the package manager
 		"apt")                                  # If the package manager is apt
-			sudo apt update                        # Update the package list
-			sudo apt install -y "$@"               # Install the packages passed as arguments
+            echo 'debconf debconf/frontend select Noninteractive' | sudo debconf-set-selections
+			export DEBIAN_FRONTEND=noninteractive
+            export NEEDRESTART_MODE=a
+            export DEBIAN_PRIORITY=critical
+            sudo -E apt update -y && sudo apt upgrade -y # Update the package list and upgrade the packages
+			sudo -E apt install -y "$@"               # Install the packages passed as arguments
 			;;
 		"dnf")                    # If the package manager is dnf
            sudo dnf upgrade -y      # Update the package list
@@ -98,7 +102,7 @@ function install_packages {
 # and store the ones that are indeed absent in another local array.
 # Then it will install the packages that are missing by invoking the install_packages function.
 function check_dependencies {
-	local dependencies=(curl git sudo vim ssh docker-ce docker.io docker docker-compose wget fail2ban) # Declare dependencies as a local array
+	local dependencies=(fuse-overlayfs dbus-user-session uidmap slirp4netns docker-compose htop curl git sudo vim ssh wget fail2ban) # Declare dependencies as a local array
 	#> see what to do with name differences between distros if any <#
 	local missing_dependencies=()              # Declare missing_dependencies as a local array
 	for dependency in "${dependencies[@]}"; do # Loop through the dependencies array
@@ -132,7 +136,7 @@ function hardenSSH {
 	# We split the sed command into multiple lines for readability purposes
 	# and to avoid calling it multiple times
 	if [[ -e /etc/ssh/sshd_config ]] && [[ -r /etc/ssh/sshd_config ]]; then
-		sed -i \
+		sudo sed -i \
 			-e 's/^#AllowGroups.*/AllowGroups sudo/' \
 			-e 's/^#Port.*/Port 22100/' \
 			-e 's/^#ClientAliveInterval.*/ClientAliveInterval 300/' \
@@ -142,6 +146,7 @@ function hardenSSH {
 			-e 's/^#Protocol.*/Protocol 2/' \
 			-e 's/^#PasswordAuthentication.*/PasswordAuthentication no/' \
 			-e 's/^#X11Forwarding.*/X11Forwarding no/' \
+			-e 's/^X11Forwarding.*/X11Forwarding no/' \
 			-e 's/^#AllowAgentForwarding.*/AllowAgentForwarding no/' \
 			/etc/ssh/sshd_config
 		services+=("sshd") # Add sshd to the services array
@@ -156,16 +161,20 @@ function getCorrectFirewall {
 	distro="$(get_distro)"          # Get the distribution name
 	case "$distro" in               # Use case to check for the distribution name
 		"Ubuntu" | "Debian GNU/Linux") # If the distribution is Ubuntu or Debian
-			apt install ufw -y # Install ufw
+            echo 'debconf debconf/frontend select Noninteractive' | sudo debconf-set-selections
+			export DEBIAN_FRONTEND=noninteractive
+            export NEEDRESTART_MODE=a
+            export DEBIAN_PRIORITY=critical
+            sudo -E apt install ufw -y # Install ufw
            printf "%s" "ufw" # Output ufw
 			;;
 		"CentOS Linux" | "Fedora" | "Red Hat Enterprise Linux Server") # If the distribution is CentOS, Fedora or RHEL
-			dnf install firewalld -y # Install firewalld
+			sudo dnf install firewalld -y # Install firewalld
            printf "%s" "firewalld" # Output firewalld
 			;;

 		"openSUSE Leap")      # If the distribution is OpenSUSE
-			zypper install firewalld -y # Install firewalld
+			sudo zypper install firewalld -y # Install firewalld
            printf "%s" "firewalld" # Output firewalld
 			;;
 		*)
@@ -183,20 +192,24 @@ function getCorrectKernelSecurityModule {
 	distro="$(get_distro)"          # Get the distribution name
 	case "$distro" in               # Use case to check for the distribution name
 		"Ubuntu") # If the distribution is Ubuntu
-			apt install apparmor-profiles apparmor-utils apparmor-profiles-extra -y # Install apparmor
+			sudo apt install apparmor-profiles apparmor-utils apparmor-profiles-extra -y # Install apparmor
            printf "%s" "apparmor" # Output apparmor
 			;;
        "Debian GNU/Linux") # If the distribution is Debian
-            apt install apparmor apparmor-utils auditd python3-apparmor -y # Install apparmor
+            echo 'debconf debconf/frontend select Noninteractive' | sudo debconf-set-selections
+			export DEBIAN_FRONTEND=noninteractive
+            export NEEDRESTART_MODE=a
+            export DEBIAN_PRIORITY=critical
+            sudo -E apt install apparmor apparmor-profiles apparmor-profiles-extra apparmor-utils auditd python3-apparmor -y # Install apparmor
            printf "%s" "apparmor" # Output apparmor
            ;;
 		"CentOS Linux" | "Fedora" | "Red Hat Enterprise Linux Server") # If the distribution is CentOS, Fedora or RHEL
-			dnf install selinux container-selinux -y # Install selinux
+			sudo dnf install selinux container-selinux -y # Install selinux
            printf "%s" "selinux" # Output selinux
 			;;

 		"openSUSE Leap")      # If the distribution is OpenSUSE
-			zypper install -t pattern apparmor -y # Install apparmor
+			sudo zypper install -t pattern apparmor -y # Install apparmor
            printf "%s" "apparmor" # Output apparmor
 			;;
 		*)
@@ -209,20 +222,18 @@ function getCorrectKernelSecurityModule {
 }

 function firewallInit {
-    local firewall
-    firewall="$(getCorrectFirewall)" # Get the correct firewall
-    case "$firewall" in
+    getCorrectFirewall # Get the correct firewall installed
+    # Determine if ufw or firewalld is installed
+    whereis ufw | grep -q /ufw && currentFirewall="ufw" || currentFirewall="firewalld"
+    case "$currentFirewall" in
        ufw)
            sudo ufw default allow outgoing # Allow outgoing connections
            sudo ufw default deny incoming  # Deny incoming connections
            sudo ufw allow 22100/tcp        # Allow ssh connections on port 22100
-            sudo ufw enable                 # Enable the firewall
-            sudo systemctl enable --now ufw       # Enable and start the firewall on boot
        ;;
        firewalld)
            sudo systemctl enable --now firewalld # Enable the firewall on boot and start it
            sudo firewall-cmd --permanent --add-port=22100/tcp # Allow ssh connections on port 22100
-            sudo firewall-cmd --reload # Reload the firewall
        ;;
        *)
            printf "%s" "Unsupported firewall"
@@ -232,8 +243,9 @@ function firewallInit {
 }

 function kernelSecurityModuleInit {
-    local kernelSecurityModule
-    kernelSecurityModule="$(getCorrectKernelSecurityModule)" # Get the correct kernel security module
+    getCorrectKernelSecurityModule # Get the correct kernel security module installed
+    # Determine if apparmor or selinux is installed
+    whereis apparmor | grep -q /apparmor && kernelSecurityModule="apparmor" || kernelSecurityModule="selinux"
    case "$kernelSecurityModule" in
        apparmor)
            sudo systemctl enable --now apparmor # Enable the kernel security module on boot and start it
@@ -241,11 +253,12 @@ function kernelSecurityModuleInit {
        ;;
        selinux)
            sudo systemctl enable --now selinux # Enable the kernel security module on boot and start it
-            printf "%s" "{\"selinux-enabled\":true}" | sudo tee /etc/docker/daemon.json # Enable selinux in docker
+##            printf "%s" "{\"selinux-enabled\":true}" | sudo tee /etc/docker/daemon.json # Enable selinux in docker
            sudo setenforce 1 # Enforce selinux
-            sudo systemctl restart docker # Restart docker
-            sudo restorecon -Rv /var/lib/docker # Restore the selinux context of the docker directory
-            sudo restorecon -Rv /usr/bin # Restore the selinux context of the docker directory
+            sudo sed -i 's/^SELINUX=.*/SELINUX=enforcing/' /etc/selinux/config # Set selinux to enforcing
+ ##           sudo systemctl restart docker # Restart docker
+ ##           sudo restorecon -Rv /var/lib/docker # Restore the selinux context of the docker directory
+ ##           sudo restorecon -Rv /usr/bin # Restore the selinux context of the docker directory
        ;;
        *)
            printf "%s" "Unsupported kernel security module"
@@ -256,13 +269,23 @@ function kernelSecurityModuleInit {

 function dockerInit {
    # Add user to docker group to avoid using sudo when running docker commands
-    sudo usermod -aG docker "$USER"
+    ##sudo usermod -aG docker "$USER"
+    # Set up rootless docker
+    sudo runuser - secdep -c 'curl -fsSL https://get.docker.com/rootless | sh'
+    sudo runuser - secdep -c 'export DOCKER_HOST=unix://$XDG_RUNTIME_DIR/docker.sock'
+    sudo runuser - secdep -c 'export PATH=/home/$USER/bin:$PATH'
+    sudo runuser - secdep -c 'printf "%s\n" "export DOCKER_HOST=unix://$XDG_RUNTIME_DIR/docker.sock" >> "$HOME/.bashrc"'
+    sudo runuser - secdep -c 'printf "%s\n" "export PATH=/home/$USER/bin:$PATH" >> "$HOME/.bashrc"'
+    sudo runuser - secdep -c 'systemctl --user enable --now docker.service'
+    sudo runuser - secdep -c 'sudo setcap cap_net_bind_service=ep "$(which rootlesskit)"'
+    sudo runuser - secdep -c 'systemctl --user restart docker.service'
    # Create a new docker network to dissalow communication between containers
-    sudo docker network create --driver bridge -o "com.docker.network.bridge.enable_icc"="false" dockerNetworkNoICC
+    ##sudo docker network create --driver bridge -o "com.docker.network.bridge.enable_icc"="false" dockerNetworkNoICC
    # Get all arguments passed to the function and store them in the dockerImages array
    local dockerImages=("$@")
    # Check if there is a docker-compose.yml file in the user's home directory
-    [[ -f "$HOME/docker-compose.yml" ]] && docker-compose -f "$HOME/docker-compose.yml" up -d # If there is, run it
+    sudo runuser - secdep -c '[[ -f "$HOME/docker-compose.yml" ]] && docker-compose -f "$HOME/docker-compose.yml" up -d' # If there is, run it
+    # sudo runuser - secdep -c '[[ -f "$HOME/docker-compose.yml" ]] && docker-compose -f "$HOME/docker-compose.yml" up -d' || return 0 # If there is, run it
    # Check if the dockerImages array is empty and return 0 if it is
    [[ "${#dockerImages[@]}" -eq 0 ]] && return 0
    # Loop through the dockerImages array
@@ -270,49 +293,53 @@ function dockerInit {
    for dockerImage in "${dockerImages[@]}"; do
        # No need to pull the docker image as the run command will do it automatically
        # Run the docker image in the background,
-        # with the restar always option and the name of the docker image
+        # with the restart always option and the name of the docker image
        # The --security-opt=no-new-privileges option will prevent the docker image from gaining new privileges
        # The --cap-drop all option will drop all capabilities from the docker image
-        # The --cap-add NET_ADMIN option will add the NET_ADMIN capability to the docker image
+        # The --cap-add NET_BIND_SERVICE option will add the NET_BIND_SERVICE capability to the docker image
        # The --read-only option will mount the docker image as read-only
        # The --tmpfs /opt option will mount the /opt directory as a tmpfs
        # The --network dockerNetworkNoICC option will connect the docker image to the dockerNetworkNoICC network
+        # The -v /:/host option will enable the docker rootless mode
        # # The --user secdep option will run the docker image as the secdep user to prevent privilege escalation
-        docker run -d --restart always --name "$dockerImage" --security-opt=no-new-privileges --cap-drop all --cap-add NET_ADMIN --read-only --tmpfs /opt --network dockerNetworkNoICC "$dockerImage"
+        /home/secdep/bin/docker run -d --restart always --name "$dockerImage" --security-opt=no-new-privileges --cap-drop all --cap-add NET_BIND_SERVICE --read-only --tmpfs /opt -v /:/host "$dockerImage"
+        ##docker run -d --restart always --name "$dockerImage" --security-opt=no-new-privileges --cap-drop all --cap-add NET_BIND_SERVICE --read-only --tmpfs /opt -v /:/host --network dockerNetworkNoICC "$dockerImage"
        #docker run -d --restart always --name "$dockerImage" --security-opt=no-new-privileges --cap-drop all --cap-add NET_ADMIN --user secdep "$dockerImage"
    done
 }

 # The apparmorConfig function will set up and configure apparmor with sane defaults.
-function apparmorConfig {
-    # Create a new apparmor profile for the docker daemon
-    sudo aa-genprof docker
-    # Enable the apparmor profile for the docker daemon
-    sudo aa-enforce docker
-    # Reload the apparmor profiles
-    sudo systemctl reload apparmor
-}
+# function apparmorConfig {
+#     # Create a new apparmor profile for the docker daemon
+#     sudo aa-genprof docker
+#     # Enable the apparmor profile for the docker daemon
+#     sudo aa-enforce docker
+#     # Reload the apparmor profiles
+#     sudo systemctl reload apparmor
+# }

 # The selinuxConfig function will set up and configure selinux with sane defaults.
-function selinuxConfig {
-    # Set the selinux boolean to allow docker to use the network
-    sudo setsebool -P docker_connect_any 1
-}
+# function selinuxConfig {
+#     # Set the selinux boolean to allow docker to use the network
+#     sudo setsebool -P docker_connect_any 1
+# }

 # This function will create a new apparmor profile for every docker image installed on the system.
-function apparmorProfiles {
-    # Get all the docker images installed on the system and store them in the dockerImages array
-    local dockerImages=("$(docker images --format "{{.Repository}}")")
-    # Loop through the dockerImages array
-    for dockerImage in "${dockerImages[@]}"; do
-        # Create a new apparmor profile for the docker image
-        sudo aa-genprof "$dockerImage"
-        # Enable the apparmor profile for the docker image
-        sudo aa-enforce "$dockerImage"
-    done
-    # Reload the apparmor profiles
-    sudo systemctl reload apparmor
-}
+# function apparmorProfiles {
+#     # Get all the docker images installed on the system and store them in the dockerImages array
+#     local dockerImages=("$(docker images --format "{{.Repository}}")")
+#     # Loop through the dockerImages array
+#     for dockerImage in "${dockerImages[@]}"; do
+#         # Create a new apparmor profile for the docker image
+#         sudo aa-genprof "$dockerImage"
+#         # Enable the apparmor profile for the docker image
+#         sudo aa-enforce "$dockerImage"
+#     done
+#     # Reload the apparmor profiles
+#     sudo systemctl reload apparmor
+# }
+
+

 function configureFail2ban {
 FAIL2BAN_LOCAL=$(cat <<'EOF'
@@ -360,7 +387,26 @@ EOF
 printf "%s" "$HARDEN_FAIL2BAN_SERVICE" | sudo tee /etc/systemd/system/fail2ban.service.d/override.conf
 sudo systemctl enable --now fail2ban
 printf "%s" "LogLevel VERBOSE" | sudo tee -a /etc/ssh/sshd_config
-sudo systemctl restart sshd
+#sudo systemctl restart sshd
+}
+
+function restartServices {
+    for service in "${services[@]}"; do
+        sudo systemctl restart "$service"
+    done
+    # command -v ufw >/dev/null 2>&1 && currentFirewall="ufw" || currentFirewall="firewalld"
+    whereis ufw | grep -q /ufw && currentFirewall="ufw" || currentFirewall="firewalld"
+    # For ufw
+    # Enable the firewall
+    # Enable and start the firewall on boot
+    [[ "$currentFirewall" == "ufw" ]] && sudo ufw enable && sudo systemctl enable --now ufw
+    # For firewalld
+    # Reload the firewall
+    [[ "$currentFirewall" == "firewalld" ]] && sudo firewall-cmd --reload
+    sudo systemctl disable --now docker
+    # Make sure docker is disabled after
+    # installing docker-compose, to make sure
+    # only rootless docker is used
 }

 # The main function will call the check_dependencies function and exit if it fails.
@@ -371,14 +417,16 @@ function main {
    firewallInit || exit 1        # Initialize the firewall and exit if it fails
    kernelSecurityModuleInit || exit 1 # Initialize the kernel security module and exit if it fails
    configureFail2ban || exit 1        # Initialize fail2ban and exit if it fails
-    dockerInit || exit 1          # Initialize docker and exit if it fails
-    apparmorConfig      # Configure apparmor
-    apparmorProfiles    # Create apparmor profiles for all docker images
-    selinuxConfig       # Configure selinux
+## I should probably delete this one    dockerInit || exit 1          # Initialize docker and exit if it fails
+#    apparmorConfig      # Configure apparmor
+#    apparmorProfiles    # Create apparmor profiles for all docker images
+#    selinuxConfig       # Configure selinux
    # If number of arguments is greater than 0
    # Call the dockerInit function with the arguments passed to the script
    # Else exit with error code 1
-    [[ $# -gt 0 ]] && dockerInit "$@" || exit 1
+##    [[ $# -gt 0 ]] && dockerInit "$@" || exit 1
+    dockerInit "$@" || exit 1
+    restartServices || exit 1
 	printf "%s" "Script finished" # Output message to the user
 }