haproxy.cfg

# The first two global and default sections
# are just the ones present by default in the config file
# We leave these unchanged

global
	log /dev/log	local0
	log /dev/log	local1 notice
	chroot /var/lib/haproxy
	stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
	stats timeout 30s
	user haproxy
	group haproxy
	daemon

	# Default SSL material locations
	ca-base /etc/ssl/certs
	crt-base /etc/ssl/private

	# See: https://ssl-config.mozilla.org/#server=haproxy&server-version=2.0.3&config=intermediate
        ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
        ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
        ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets

defaults
	log	global
	mode	http
	option	httplog
	option	dontlognull
        timeout connect 5000
        timeout client  50000
        timeout server  50000
	errorfile 400 /etc/haproxy/errors/400.http
	errorfile 403 /etc/haproxy/errors/403.http
	errorfile 408 /etc/haproxy/errors/408.http
	errorfile 500 /etc/haproxy/errors/500.http
	errorfile 502 /etc/haproxy/errors/502.http
	errorfile 503 /etc/haproxy/errors/503.http
	errorfile 504 /etc/haproxy/errors/504.http

# Setup stats admin panel on port 8080 so we can view load statistics during the CTF
listen stats
    bind *:8080
    mode http
    stats enable
    stats uri /
    # DON'T FORGET TO CHANGE THE CREDENTIALS BELOW!!
    stats auth username:password

# Setup a haproxy table to store connection information for each user IP adress
# We'll use in each challenge to limit no of connections and the connection rate
# for users
backend Abuse
	stick-table type ip size 1m expire 10m store conn_rate(3s),conn_cur

# Set the detault mode as TCP, so pwn challenges and netcat challenges work
# Also set connection timeouts
# most importantly, set the default backend to the cluster. We create this backend
# in the end of this file
defaults
	mode tcp
	default_backend chall-cluster
  	timeout connect 5000
  	timeout client  50000
  	timeout server  50000
	errorfile 400 /etc/haproxy/errors/400.http
	errorfile 403 /etc/haproxy/errors/403.http
	errorfile 408 /etc/haproxy/errors/408.http
	errorfile 500 /etc/haproxy/errors/500.http
	errorfile 502 /etc/haproxy/errors/502.http
	errorfile 503 /etc/haproxy/errors/503.http
	errorfile 504 /etc/haproxy/errors/504.http


# The below configurations have configurations for each and every challenge
# For each case, we setup rules to reject connections in our blacklist file
# and also setup rate limiting rules to a maximum connection rate of 50 every
# 3 seconds, and a maximum of 50 simultaneous connections

# Note that its possible to just create one frontend section and bind to multiple ports
# too, by doing something like
#
# frontend challenges
# 	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
# 	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
# 	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
# 	tcp-request connection track-sc1 src table Abuse
# 	bind *:30000-50000
#
#
# The reason we create multiple frontends, is just so that we can monitor them
# individually on the stats admin panel that we created above in this file. If you
# don't need to monitor on an individual challenge level, then just use the above 
# frontend rule and omit all the ones below

# Change these to your challenges and ports, obviously

# PWN
frontend pwn-intended-0x1
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30001
frontend pwn-intended-0x2
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30007
frontend pwn-intended-0x3
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30013
frontend global-warming
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30023
frontend smash
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30046

# WEB
frontend body-count
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30202
frontend cascade
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30203
frontend ccc
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30125
frontend file-library
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30222
frontend mr-rami
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30231
frontend oreo
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30243
frontend the-confused-deputy
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30256
frontend the-usual-suspects
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30279
frontend warm-up
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30272
frontend secure-portal
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30281

# MISC
frontend escape-plan
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30419
frontend friends
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30425
frontend prison-break
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30407

# REV
frontend blaise
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30808
frontend vietnam
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30814
frontend aka
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30611
frontend where-am-i
	tcp-request connection reject if { src -f /etc/haproxy/blacklist.lst }
	tcp-request connection reject if { src_conn_rate(Abuse) ge 50 }
	tcp-request connection reject if { src_conn_cur(Abuse) ge 50 }
	tcp-request connection track-sc1 src table Abuse
	bind *:30623


# Lastly, create the chall-cluster backend
# We setup HaProxy to use round robin load balancing
# Add a server statement for each node's IP in your cluster
backend chall-cluster
	mode tcp
	balance roundrobin
        server node1 10.154.0.19
        server node2 10.154.0.22
        server node3 10.154.0.21