520 lines
14 KiB
Bash
Executable File
520 lines
14 KiB
Bash
Executable File
#!/bin/bash
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MY_IP=($(redis-cli --raw SMEMBERS my_ip))
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ATTACK_THRESHOLD="50"
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NGINX_ACCESS="/tmp/access.log"
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#Firewall Port Configuration
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#
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declare -A portConfig
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portConfig["https"]="443"
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portConfig["http"]="80"
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portConfig["cups"]="631"
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portConfig["WireGuard"]="57692"
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portConfig["AdGuard-1"]="3000"
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portConfig["AdGuard-2"]="8082"
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portConfig["AdGuard-3"]="853"
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portConfig["Uptime"]="4001"
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portConfig["DNS-1"]="53"
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portConfig["DNS-2"]="67"
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portConfig["DNS-3"]="68"
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portConfig["CUPS-1"]="631"
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portConfig["CUPS-2"]="5353"
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#portConfig["Bitcoin-1"]="8333"
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#portConfig["Bitcoin-2"]="8332"
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#portConfig["Bitcoin-3"]="8333"
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#portConfig["Bitcoin-4"]="4050"
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#portConfig["KDE-Connect"]="1714-1764"
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#portConfig["Lightning-1"]="10009"
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#portConfig["Lightning-1"]="9735"
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#portConfig["Lightning-2"]="8080"
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#portConfig["Lightning-3"]="28334"
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#portConfig["Lightning-4"]="28333"
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#portConfig["Lightning-5"]="19998"
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#portConfig["Lightning-6"]="29000"
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portConfig["SyncThing-1"]="22000"
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portConfig["SyncThing-2"]="8384"
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portConfig["SyncThing-3"]="21027"
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#portConfig["NFS-1"]="2049"
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#portConfig["NFS-2"]="111"
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portConfig["Jellyfin-1"]="8096"
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portConfig["Jellyfin-1"]="7359"
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portConfig["SSH"]="22"
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MACHINES=(127.0.0.1)
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VIRT_BRIDGE="virbr0"
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#### NFT CONFIG ####
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#
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NFT='/usr/bin/nft'
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NFT_CACHE='/tmp/nft.cache'
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TMP_BLOCK=($(redis-cli --raw SMEMBERS tmp_block))
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#Redis DB
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#
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SAVED_BOTS=($(redis-cli --raw SMEMBERS bots))
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CRAWLER_DB=($(redis-cli --raw SMEMBERS crawlers))
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SAFE_TRAFFIC=($(redis-cli --raw SMEMBERS safe_traffic))
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RULE_SET='/opt/firewall/nft.rules'
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MENU_TOP="=============================FireWall================================="
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MENU_BOTTOM="====================================================================="
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#Cache the Date and Current Firewall Rules at every launch
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DATE="$(date +%d/%b/%Y:%H:%M -d '1 minute ago')"
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nft list table filter >$NFT_CACHE
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ipBlockParser() {
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if [[ "$1" == *":"* ]]; then
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$NFT insert rule ip6 filter input position 0 ip6 saddr $1 drop
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else
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$NFT insert rule ip filter input position 0 ip saddr "$1" drop
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fi
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}
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portOpenParser() {
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if [[ "$1" == "443" || "$1" == "80" ]]; then
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$NFT add rule ip filter input ct state new tcp dport $1 update @http_ratelimit { ip saddr limit rate 15/second } accept
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$NFT add rule ip6 filter input ct state new tcp dport $1 update @http_ratelimit { ip6 saddr limit rate 15/second } accept
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else
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$NFT add rule ip filter input position 0 tcp dport $1 accept
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$NFT add rule ip filter input position 0 udp dport $1 accept
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$NFT add rule ip6 filter input position 0 tcp dport $1 accept
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$NFT add rule ip6 filter input position 0 udp dport $1 accept
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fi
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}
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ipDeleteParser() {
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if [[ "$1" == *":"* ]]; then
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$NFT delete rule ip6 filter input handle $HANDLE
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else
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$NFT delete rule ip filter input handle $HANDLE
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fi
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}
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blockCountry() {
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DATA=($( redis-cli SMEMBERS country_ip))
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for i in "${DATA[@]}"; do
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echo "Blocking $i"
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ipBlockParser $i
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done
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}
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wireguard-networking() {
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$NFT add table nat
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$NFT add chain nat postrouting
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$NFT add rule nat postrouting oif wg0 iif enp11s0
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$NFT add rule nat postrouting oif enp11s0 iif wg0
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$NFT add rule nat postrouting masquerade
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$NFT add rule filter forward iifname wg0 oif enp11s0 accept
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$NFT add rule filter forward iifname enp11s0 oif wg0 accept
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$NFT add rule ip filter input ip saddr 192.168.5.0/24 accept
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}
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attacker-protection() {
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watch
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module-nostr
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bot-search
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}
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bot-search() {
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CRAWLERS=($(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep -Evi 'Guro|spank|report|rape|block' | grep -Ff <(printf '%s\n' "${CRAWLER_DB[@]}") | grep -Fivf <(printf '%s\n' "${SAFE_TRAFFIC[@]}") | cut -d "-" -f1 | sort -u))
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echo
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echo "Processing Web Crawler list into NFT....."
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echo
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for i in "${CRAWLERS[@]}"; do
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CHECK=$(cat $NFT_CACHE | grep $i)
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if [ "$CHECK" = "" ]; then
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ipBlockParser $i
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redis-cli SADD bots $i
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else
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echo
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echo "Skipping Duplicate IP $i"
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echo
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fi
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done
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}
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basic-security() {
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$NFT flush ruleset
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$NFT -f /opt/firewall/ipv4-filter.nft
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$NFT -f /opt/firewall/ipv6-filter.nft
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$NFT add rule filter input icmp type echo-request drop
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$NFT rule filter output accept
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$NFT rule filter forward accept
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$NFT insert rule filter input ct state established accept
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$NFT insert rule filter input iif lo accept
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for i in "${!portConfig[@]}"; do
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echo "Enabling Port for: $i"
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portOpenParser "${portConfig[$i]}"
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done
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$NFT add rule filter input drop
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$NFT add rule ip6 filter input drop
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}
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virtualization() {
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ip link del virbr0
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killall dnsmasq
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/usr/bin/systemctl restart libvirtd
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/usr/bin/virsh net-start default
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/usr/bin/systemctl restart pleroma
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$NFT insert rule filter input iif $VIRT_BRIDGE accept
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}
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trust() {
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for i in "${MACHINES[@]}"; do
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$NFT add rule filter input ip saddr $i accept
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done
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}
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import-saved() {
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for i in "${SAVED_BOTS[@]}"; do
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ipBlockParser $i
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done
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}
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start() {
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basic-security
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if [[ $HOSTNAME == *"nas"* ]]; then
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sysctl -w net.ipv4.conf.all.forwarding=1
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import-saved
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blockCountry
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wireguard-networking
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docker restart uptime-kuma
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#Docker
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$NFT insert rule filter input iif docker0 accept
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else
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virtualization
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fi
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}
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research() {
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STATS=($(redis-cli --raw SMEMBERS tmp_block | sort -u))
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for i in "${STATS[@]}"; do
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echo $MENU_TOP
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echo " [Researching $i] "
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echo
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DATA=$(grep $i $NGINX_LOG | grep -Fivf <(printf '%s\n' "${SAFE_TRAFFIC[@]}"))
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echo "$DATA"
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echo
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echo $MENU_BOTTOM
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echo
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read -p 'Press Enter to Continue ' -e
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done
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}
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automaticStatus() {
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status
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sleep 30
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automaticStatus
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}
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status() {
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clear
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STATS=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | wc -l)
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GET=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep GET | wc -l)
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POST=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep POST | wc -l)
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PUT=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep -i PUT | wc -l)
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NOT_FOUND=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep 404 | wc -l)
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GATEWAY=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep 502 | wc -l)
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SUCCESS=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep 200 | wc -l)
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CRAWL=$(grep $DATE $NGINX_ACCESS | grep -vi $MY_IP | grep -Fivf <(printf '%s\n' "${CRAWLER_DB[@]}") | wc -l)
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echo $MENU_TOP
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echo "Attack Threshold: $ATTACK_THRESHOLD"
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echo "Firewall Rules: $($NFT list table filter | wc -l)"
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echo
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echo "Traffic Last Minute: $STATS"
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echo " GET: $GET"
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echo " PUT: $PUT"
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echo " POST: $POST"
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echo " Crawlers: $CRAWL"
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echo
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echo "Query Stats:: "
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echo " 200: $SUCCESS"
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echo " 404: $NOT_FOUND"
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echo " 502: $GATEWAY"
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echo
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#echo "Dropped Traffic: $($NFT list table filter | grep -Ei 'log counter packets' | cut -d ' ' -f6)"
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echo
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echo "Rate-limited IP's:"
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echo
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redis-cli --raw SMEMBERS tmp_block | sort -u
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echo $MENU_BOTTOM
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}
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stop() {
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#forgive
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$NFT -s list ruleset | tee $RULE_SET
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$NFT flush ruleset
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$NFT -f /usr/share/nftables/ipv4-filter.nft
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$NFT add rule filter input icmp type echo-request accept
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$NFT rule filter input accept
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$NFT rule filter output accept
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$NFT rule filter forward accept
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$NFT insert rule filter input ct state established accept
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$NFT insert rule filter input iif lo accept
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$NFT -f /opt/firewall/ipv6-filter.nft
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# $NFT add rule ip6 filter input icmpv6 type nd-neighbor-solicit accept
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# $NFT add rule ip6 filter input icmpv6 type nd-router-advert accept
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message "Stopping Firewall"
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}
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forgive() {
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IP=($(redis-cli --raw SMEMBERS tmp_block | sort -u))
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echo $IP
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for i in "${IP[@]}"; do
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HANDLE=$(nft -n -a list ruleset | grep $i | grep handle | cut -d '#' -f2 | cut -d ' ' -f3)
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echo "Removing: $i Handle: $HANDLE"
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echo $NFT delete rule ip filter input handle $HANDLE
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ipDeleteParser $HANDLE
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redis-cli SREM tmp_block $i
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done
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echo "Clearing old $TMP_BLOCK"
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redis-cli DEL tmp_blocked
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}
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module-go() {
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GO_SPAM=$(grep $2 $NGINX_ACCESS | grep -E "Go-http-client" | wc -l)
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if [[ "$GO_SPAM" -gt 10 ]]; then
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ipBlockParser "$1"
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redis-cli SADD tmp_block $i
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message "Go Spam Attack!"
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fi
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}
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module-akkoma() {
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SEARCH_SPAM=$(grep $2 $NGINX_ACCESS | grep -E "api/v1/instance|api/v1/notifications|api/v1/accounts|api/v2/search|timelines/public|timelines/home|/api/v1/accounts" | grep $1 | wc -l)
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CHECK=$(cat $NFT_CACHE | sort -u | grep $i)
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if [[ "$SEARCH_SPAM" -gt 30 ]]; then
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echo "$IP $CHECK $COUNT"
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if [ "$CHECK" = "" ]; then
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ipBlockParser "$1"
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redis-cli SADD tmp_block $i
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message "module-akkoma: Spam Attack! $i"
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echo "module-akkoma: Spam $1"
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else
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echo "module-akkoma: Ignoring Duplicate IP: $i"
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fi
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fi
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}
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module-get-spam() {
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GET_SPAM=$(grep $2 $NGINX_ACCESS | grep -E "GET / HTTP" | wc -l)
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if [[ "$GET_SPAM" -gt 5 ]]; then
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ipBlockParser "$1"
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redis-cli SADD tmp_block $i
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message "GET Spam Attack! $1"
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fi
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}
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module-php() {
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PHP_SPAM=$(grep $2 $NGINX_ACCESS | grep -E ".php|cgi-bin|wp-content|wp-admin|wp-includes" | wc -l)
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if [[ "$PHP_SPAM" -gt 1 ]]; then
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ipBlockParser "$1"
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message "PHP Attack!"
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redis-cli SADD tmp_block $i
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fi
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}
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module-lightning() {
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LN_SPAM=$(grep $2 $NGINX_ACCESS | grep "lnurlp/verita84" | wc -l)
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if [[ "$LN_SPAM" -gt 5 ]]; then
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ipBlockParser "$1"
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message "Lightning Spam Attack!"
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redis-cli SADD tmp_block $i
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fi
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}
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message() {
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echo "$1" | /root/go/bin/algia dm-post -u 33c74427f3b2b73d5e38f3e6c991c122a55d204072356f71da49a0e209fb6940 --stdin
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}
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watch() {
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echo "Scanning $DATE"
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echo
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IP=($(grep $DATE $NGINX_ACCESS | grep -Fivf <(printf '%s\n' "${SAFE_TRAFFIC[@]}") | grep -Fivf <(printf '%s\n' "${CRAWLER_DB[@]}") | grep -Fivf <(printf '%s\n' "${SAVED_BOTS[@]}") | grep -vi $MY_IP | grep -vi '127.0.0.1' | cut -d ' ' -f1 | sort -u))
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for i in "${IP[@]}"; do
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module-akkoma "$i" "$DATE"
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module-lightning "$i" "$DATE"
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module-php "$i" "$DATE"
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module-go "$i" "$DATE"
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module-get-spam "$i" "$DATE"
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COUNT=$(grep $DATE $NGINX_ACCESS | grep $i | grep -Fivf <(printf '%s\n' "${SAFE_TRAFFIC[@]}") | grep -Fivf <(printf '%s\n' "${SAVED_BOTS[@]}") | wc -l)
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CHECK=$(cat $NFT_CACHE | sort -u | grep $i)
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if [[ "$COUNT" -gt $ATTACK_THRESHOLD ]]; then
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if [ "$CHECK" = "" ]; then
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echo "Danger! Blocking IP: $i Count: $COUNT"
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logger "Blocking IP: $i with a count of: $COUNT"
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redis-cli SADD tmp_block $i
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ipBlockParser $i
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message "Blocking IP: $i with a count of: $COUNT"
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else
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echo
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echo "Skipping Duplicate IP"
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echo
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fi
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else
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echo
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echo "$i count: $COUNT below Threshhold: $ATTACK_THRESHOLD"
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echo
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fi
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done
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}
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module-nostr() {
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IP=($(grep $DATE $NGINX_ACCESS | grep "/block=" | cut -d '=' -f2 | cut -d ' ' -f1 | sed 's/"//'))
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for i in "${IP[@]}"; do
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echo $i
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if [[ "$i" == *"npub"* ]]; then
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bash /opt/strfry-policies/block.sh $i
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else
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echo "No Npubs to block"
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fi
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done
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}
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test-bots() {
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for i in "${SAVED_BOTS[@]}"; do
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DATA=$(grep $i $NGINX_ACCESS | grep -Fivf <(printf '%s\n' "${CRAWLER_DB[@]}"))
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if [ "$DATA" = "" ]; then
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echo "No Data. Probably OK"
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else
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echo $DATA
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echo
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read -p 'Press Enter to Continue ' -e
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fi
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done
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}
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research-ip() {
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echo "Enter an IP Address to search"
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read -p 'IP Address: ' -e IP
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cat $NGINX_ACCESS | grep $IP
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echo
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read -p 'Press Enter to Continue ' -e
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}
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menu() {
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clear
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echo
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echo $MENU_TOP
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echo "1. Start"
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echo "2. Stop"
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echo "3. Reseearch"
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echo "4. Forgive"
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echo "5. Status"
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echo "6. Live Traffic"
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echo "7. Test Bot Search Rules"
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echo "8. Research IP"
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echo "9. View Current Rule Set"
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echo "0. Quit"
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echo $MENU_BOTTOM
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echo
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read -p 'Choice: ' CHOICE
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echo
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if [ "$CHOICE" = "1" ]; then
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echo
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echo "Starting Firewall"
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start
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read -p 'Press Enter to Continue ' -e-
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elif [ "$CHOICE" = "2" ]; then
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echo
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echo "Stopping Firewall"
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stop
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read -p 'Press Enter to Continue ' -e
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elif [ "$CHOICE" = "3" ]; then
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research
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read -p 'Press Enter to Continue ' -e
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elif [ "$CHOICE" = "4" ]; then
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forgive
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elif [ "$CHOICE" = "55" ]; then
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automaticStatus
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elif [ "$CHOICE" = "5" ]; then
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status
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read -p 'Press Enter to Continue ' -e
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elif [ "$CHOICE" = "6" ]; then
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tail -f $NGINX_ACCESS | grep -Fivf <(printf '%s\n' "${SAFE_TRAFFIC[@]}") | grep -Fivf <(printf '%s\n' "${CRAWLER_DB[@]}")
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read -p 'Press Enter to Continue ' -e
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elif [ "$CHOICE" = "7" ]; then
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test-bots
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read -p 'Press Enter to Continue ' -e
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elif [ "$CHOICE" = "8" ]; then
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research-ip
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read -p 'Press Enter to Continue ' -e
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elif [ "$CHOICE" = "9" ]; then
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nft -s list ruleset | less
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elif [ "$CHOICE" = "0" ]; then
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exit
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fi
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echo
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menu
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}
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importDB() {
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DATA=($(cat safe.txt))
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for i in "${DATA[@]}"; do redis-cli SADD safe_traffic $i; done
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DATA=($(cat bots.txt))
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for i in "${DATA[@]}"; do redis-cli SADD bots $i; done
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DATA=($(cat crawlers.txt))
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for i in "${DATA[@]}"; do redis-cli SADD crawlers $i; done
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redis-cli SADD my_ip $(curl ifconfig.me)
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redis-cli SADD country https://www.ipdeny.com/ipblocks/data/countries/il.zone \
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https://www.ipdeny.com/ipblocks/data/countries/cn.zone
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COUNTRY=($( redis-cli SMEMBERS country) )
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for i in "${COUNTRY[@]}"; do
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echo
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echo "Blocking $i"
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DB=($(curl $i))
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for j in "${DB[@]}"; do
|
|
redis-cli SADD country_ip $j
|
|
done
|
|
done
|
|
}
|
|
|
|
exportDB() {
|
|
rm -f crawlers.txt
|
|
rm -f bots.txt
|
|
rm -f safe.txt
|
|
for i in "${CRAWLER_DB[@]}"; do echo $i >>crawlers.txt; done
|
|
for i in "${SAVED_BOTS[@]}"; do echo $i >>bots.txt; done
|
|
for i in "${SAFE_TRAFFIC[@]}"; do echo $i >>safe.txt; done
|
|
}
|
|
|
|
if [ "$1" = "start" ]; then
|
|
start
|
|
elif [ "$1" = "import-db" ]; then
|
|
importDB
|
|
elif [ "$1" = "export-db" ]; then
|
|
exportDB
|
|
elif [ "$1" = "virt" ]; then
|
|
virtualization
|
|
elif [ "$1" = "bot-search" ]; then
|
|
bot-search
|
|
elif [ "$1" = "attacker-protection" ]; then
|
|
attacker-protection
|
|
elif [ "$1" = "status" ]; then
|
|
automaticStatus
|
|
elif [ "$1" = "forgive" ]; then
|
|
forgive
|
|
elif [ "$1" = "watch" ]; then
|
|
watch
|
|
elif [ "$1" = "research" ]; then
|
|
research
|
|
elif [ "$1" = "stop" ]; then
|
|
stop
|
|
elif [ "$1" = "message" ]; then
|
|
message $2
|
|
elif [ "$1" = "test" ]; then
|
|
test-bots
|
|
elif [ "$1" = "import" ]; then
|
|
import-saved
|
|
else
|
|
menu
|
|
fi
|