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pwbox

A password manager in development.

Installation

# before boot, edit files in fat boot partition from host
Create a blank file /boot/ssh

/boot/wpa_supplicant.conf
    ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
    update_config=1
    country=US

    network={
        ssid="somewifi1"
        psk="abc"
        key_mgmt=WPA-PSK
    }

    network={
        ssid="somewifi12"
        psk="abc"
        key_mgmt=WPA-PSK
    }



# Now boot up the raspberry pi and login (ssh should be enabled at this point)
sudo su

apt-get update
apt-get dist-upgrade
apt-get install --no-install-recommends apache2 libapache2-mod-php gnupg1 expect haveged rng-tools uuid-runtime at
apt-get install --no-install-recommends git

# to disable bluetooth
apt-get purge bluez -y ; apt-get autoremove -y

cd /
git clone https://github.com/allanrbo/pwbox.git
cd pwbox
chown www-data:www-data -R data
cp config.template.json config.json

mkdir -p /root/pwboxscripts
cp /pwbox/rootscripts/* /root/pwboxscripts/
chmod 700 /root/pwboxscripts/
chmod 700 /root/pwboxscripts/*
cp /pwbox/etc/sudoers.d/pwbox /etc/sudoers.d/pwbox
chmod 0440 /etc/sudoers.d/pwbox

cd /etc/ssl/private
openssl genrsa -out pwbox.key 2048
chmod 600 /etc/ssl/private/pwbox.key
openssl req -new -key pwbox.key -subj "/CN=pwbox" -x509 -days 36500 -out pwbox.crt
mv pwbox.crt /etc/ssl/certs

a2dissite 000-default
a2enmod ssl rewrite headers
nano /etc/apache2/sites-enabled/pwbox.conf
    ServerName pwbox
    <Directory /pwbox/www/>
        AllowOverride all
        Require all granted
    </Directory>

    <Directory /pwbox/api/>
        AllowOverride all
        Require all granted
    </Directory>

    <VirtualHost _default_:443>
        DocumentRoot /pwbox/www/
        Alias /api/ /pwbox/api/

        SSLEngine on
        SSLCertificateFile /etc/ssl/certs/pwbox.crt
        SSLCertificateKeyFile /etc/ssl/private/pwbox.key
    </VirtualHost>

service apache2 restart

# Creating initial user and Administrators group (this will be less hacky in the future)
cd /pwbox
nano api/index.php
    if ($method == "POST" && $uri == "/user") {
        ######## COMMENT OUT THE FOLLOWING TWO LINES ########
        ...
        //$authInfo = extractTokenFromHeader();
        //requireAdminGroup($authInfo);
        ...
        //$data["modifiedBy"] = $authInfo["username"];

    if ($method == "POST" && $uri == "/group") {
        ######## COMMENT OUT THE FOLLOWING TWO LINES ########
        ...
        //$authInfo = extractTokenFromHeader();
        //requireAdminGroup($authInfo);
        ...
        //$data["modifiedBy"] = $authInfo["username"];

curl --insecure -X POST -d '{"username": "user123", "password": "pass123"}' https://localhost/api/user   ; history -d $(history 1)
curl --insecure -X POST -d '{"name": "Administrators", "members": [ "user123" ] }' https://localhost/api/group

# revert the changes to api/index.php
git checkout api/index.php

# Lock down all ports except 80, 443
nano /etc/rc.local
    #!/bin/bash
    iptables --flush INPUT
    iptables -A INPUT -p tcp --dport 80 -j ACCEPT
    iptables -A INPUT -p tcp --dport 443 -j ACCEPT
    iptables -A INPUT -p icmp --icmp-type 8 -j ACCEPT
    iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
    iptables -A INPUT -j DROP

/etc/rc.local


ssh-keygen -f ~/.ssh/id_rsa_pwboxtunnel -P ""
cat ~/.ssh/id_rsa_pwboxtunnel.pub

# test the ssh connection before proceeding
ssh -i /home/pi/.ssh/id_rsa_pwboxtunnel -p 59563 [email protected]


# ON THE TUNNEL SERVER
    /etc/ssh/sshd_config
        Port 59563
        GatewayPorts yes

    service ssh restart

    # Lock down all ports except 80, 443
    nano /etc/rc.local
        #!/bin/bash
        iptables --flush INPUT
        iptables -A INPUT -p tcp --dport 80 -j ACCEPT
        iptables -A INPUT -p tcp --dport 443 -j ACCEPT
        iptables -A INPUT -p icmp --icmp-type 8 -j ACCEPT
        iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
        iptables -A INPUT -j DROP
    chmod +x /etc/rc.local
    /etc/rc.local

# BACK ON THE RASPBERRY PI

nano /home/pi/tunnelout.sh
    #!/bin/bash

    startssh() {

      # Kill existing sessions, as they might be occupying the port
      ssh -i /home/pi/.ssh/id_rsa_pwboxtunnel -p 59563 \
        [email protected] \
        "ps aux | grep -v grep | grep 'sshd: root' | awk {'print \$2'} | xargs kill"

      ssh -i /home/pi/.ssh/id_rsa_pwboxtunnel -p 59563 -N -f \
        -o ServerAliveInterval=30 \
        -R 0.0.0.0:80:127.0.0.1:80 \
        -R 0.0.0.0:443:127.0.0.1:443 \
        [email protected] &
    }

    response=$(curl --connect-timeout 10 --max-time 15 --write-out %{http_code} --silent --output /dev/null https://pwbox1.acoby.com/)
    if [ $response -eq 200 ]
    then
      echo Site via tunnel reachable
    else
      echo Site via tunnel not reachable
      r=$(pgrep -f "ssh.*pwbox1\.acoby\.com" 2>&1)
      if [ $? -eq 0 ]
      then
        kill $r
      fi
      startssh
    fi

chmod +x /home/pi/tunnelout.sh
/home/pi/tunnelout.sh

crontab -e
    */2 * * * * /home/pi/tunnelout.sh > /dev/null 2>&1


# Set up Let's Encrypt HTTPS
cd /etc/ssl/private
wget https://raw.githubusercontent.com/diafygi/acme-tiny/master/acme_tiny.py
chmod +x acme_tiny.py
openssl genrsa 4096 > letsencryptaccount.key

openssl genrsa -out pwbox.key 2048
openssl req -new -key pwbox.key -subj "/CN=pwbox1.acoby.com" -out pwbox.csr



rm /var/www/html/*

nano /etc/apache2/sites-enabled/pwbox.conf
    ServerTokens ProductOnly
    ServerSignature Off

    ServerName pwbox
    <Directory /pwbox/www/>
    AllowOverride all
    Require all granted
    </Directory>

    <Directory /pwbox/api/>
    AllowOverride all
    Require all granted
    </Directory>

    <VirtualHost _default_:443>
    DocumentRoot /pwbox/www/
    Alias /api/ /pwbox/api/
    SSLEngine on
    SSLCertificateFile /etc/ssl/certs/pwbox+intermediate+root.pem
    SSLCertificateKeyFile /etc/ssl/private/pwbox.key
    Header always set Strict-Transport-Security "max-age=63072000; includeSubdomains;"
    </VirtualHost>

    <VirtualHost _default_:80>
    DocumentRoot /var/www/html/
    RewriteEngine On
    RewriteCond %{THE_REQUEST} !/.well-known/ [NC]
    RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=302]
    </VirtualHost>


# temporarily make a self signed one in order to reload apache
openssl req -new -key /etc/ssl/private/pwbox.key -subj "/CN=pwbox" -x509 -days 36500 -out /etc/ssl/certs/pwbox+intermediate+root.pem
/etc/init.d/apache2 restart

nano /etc/ssl/private/renewcerts.sh
  wget -q -O - https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem > /etc/ssl/certs/lets-encrypt-x3-cross-signed.pem

  function renewcert () {
    wwwroot=$1
    certfilebasename=$2

    mkdir -p $wwwroot/.well-known/acme-challenge/
    python /etc/ssl/private/acme_tiny.py \
      --account-key /etc/ssl/private/letsencryptaccount.key \
      --csr /etc/ssl/private/$certfilebasename.csr \
      --acme-dir $wwwroot/.well-known/acme-challenge/ \
      > /etc/ssl/certs/$certfilebasename.crt
    cat /etc/ssl/certs/$certfilebasename.crt /etc/ssl/certs/lets-encrypt-x3-cross-signed.pem > /etc/ssl/certs/$certfilebasename+intermediate.pem
    cat /etc/ssl/certs/$certfilebasename.crt /etc/ssl/certs/lets-encrypt-x3-cross-signed.pem > /etc/ssl/certs/$certfilebasename+intermediate+root.pem
    rm -fr $wwwroot/.well-known/
  }

  renewcert /var/www/html pwbox
  /etc/init.d/apache2 reload

chmod +x /etc/ssl/private/renewcerts.sh
/etc/ssl/private/renewcerts.sh

crontab -e
  17 03 12 * * /etc/ssl/private/renewcerts.sh

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