Question

Please explain:

1- How does Buffer Overflow Vulnerability Lab working?

2- What are the features of Buffer Overflow Vulnerability Lab?

3- What are the advantage of Buffer Overflow Vulnerability Lab?

Answer 1

The main motto of this lab is to gain the knowledge for the students on buffer overflow vulnerability from class into actions. It is defined as the condition in which a program attempts to write data beyond the boundaries of pre-allocated fixed length buffers. The vulnerability which can be used by the unknown user to change the flow control of the program and may even execute into pieces of code. It is mainly occurs due to mixing of code and controls.
The following features that are involved in buffer overflow
Intial setup, Address space randomization, Execshield protection in fedora, Protection in Bash, The stackguard protection scheme.
To disable these features the following code have tobe executed:
$ su root
password: (enter root password)
#sysct1 -w kernel.randomize_va_space=0
The main advantage is it will have a control on the malware that is happening most of the times today. It will help to attack the hackers servers for us as well