Vulnerable Network Programs

Hey there, this repository demonstrates the "Network Programming" concepts (TCP/IP client-server model) with the help of programs which are intensionally made vulnerable to various binary exploitation techniques. This started out of curiosity to understand how the network programs worked at the purest form with C programming language and hence is made vulnerable. It could have been
implemented in other high level programming languages also (like java, python etc.) but the layers of abstraction provided by languages like python provide won't let us have an insight about the concepts. I would love any suggestions on how can this model be made more vulnerable and any contributions regarding the same would be appreciated. Cheers,

USAGE

Issue the commands bellow on the linux command line to generate and ELF executable of webserver-

$ git clone https://github.com/compilepeace/Network_programming/	# clonning git repository
$ cd Network_programming						# getting into Networ_programming directory
$ make									# building webserver, webclient and dnsresolver
$ make run_webserver 							# run the webserver on port 8080

VULNERABILITIES

• Buffer Overflow
• Local File Inclusion (LFI)

Note : Ignore the warnings since the "webserver" program is intensionally made vulnerable so that later on Exploitation can be demonstrated.