Explain why they can be successful even on firewalls

Reference no: EM133684088

Assignment - Memory Attacks

For this assignment:
Connect to the HacklabVM
Get the secret message for each of q1 ~ q6
Go to /home/q1/. Exploit the program to get the secret.
Go to/ home/q2/. Exploit the program to get the secret.
Go to/ home/q3/. Exploit the program to get the secret.
Go to /home/q4/. Exploit the program to get the secret.
Go to /home/q5/. Exploit the program to get the secret.
Go to /home/q6/. Exploit the program to get the secret.
Firewalls have the capability to block both ingress (inbound) and egress (outbound) traffic. Many organisations (and also true for my home NBN router) block ingress, but is pretty open when it comes to egress rules.

Why should organisations care about setting egress (outbound) firewall rules?

Lookup "C2 server" on the internet and explain why they can be successful even on firewalls that tightly restrict egress traffic to sanctioned ports like 53, 80 and 443.

(Bonuse 2 points) Go to /home/q7/. Exploit the program to get the secret.(You may not get the secret because of server problem, you can just provide process and description for this question and you will get the full mark.)
(Bonuse 3 points) Go to /home/q8/. Exploit the program to get the secret.

Part II
Return to Libc
Go to /home/q9, and exploit the pre-compiled program q9 to get the secret. Source code is provided.
You might need to read the source code to understand what's happening.
Hints:
The program expects a filename for argv[1], so the payload needs to be. in a <redacted>.
In performing Step 8 of the workshop, replace
with

to look for your environmental variable (SH) as it's usually further up
If your exploit succeeds in gdb (it should) but fails outside of gdb (as per workshop) you need to adjust the last 4 bytes of the payload carefully... I have installed hexedit on the server (F1
for help).
Make sure to run with full path /home/q9/q9 /<full path to payload> outside of gdb to be consistent.
The findenv.c program would not work in this case, as the argv[0] length will be different.

Reference no: EM133684088

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Reviews

len3684088

4/28/2024 10:37:08 PM

This is the sample answer (Attached below) We have to use kali linux iso image to install on virtual box and that has all the programs to run by script or payload I have also mentioned the instructions More details 1. This link is for virtual box download and i have attached kali linux 2. I have attched workshop installation of the kali linux as they have setup the network adaptor- "workshop Installation" 3. Memory attached workshop has the idea and examples how to deal with environment 4. Memory attached workshop has the 2 workshop related to the assignment 5. Assignment 3 as a sample assignment to help ypu to perform 6. Another assignment sample. 7. I have also shared the first answer that i Have attempted to have an idea. Please mark the program is already written in those q1 to q8 folders only required to have payload of script to get the answer in the secret file. Do not write the program on assignment that is not required.

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