So, guys, welcome back and this, will you?
We are going to write a simple father using the Python programming language.
So that's get.
No, I'm using this particular oil keep it from Hackney website, and it uses the editor while I put
these two first links in the description.
Make sure you can download this.
No, I am also using the budget to debunk this program, this Bahraini military blogger.
No, we run the program.
So basically, what I will explain again, fuzzing generally really connect to the server our application,
and we generate a random or unintentional data and then we send the data to the application and we see
its behavior using the debugger with the good.
You can see the applications that are our memory.
So my application is running in this hour, listening on the port one three three seven to contact.
You need all.
You also need an IP address.
Right now.
What I can do is I'm going to find a way to solve this machine.
API, FIP config, sorry, I have configures for you now, if you will be config, you can see the network
adapter details, not IP addresses due to the 168, not one.
I do not want to copy this.
I think this is the correct Brooks.
And also.
Poll number is one three three seven.
To interact with any obligation, we use library.
So imports are good and we also use some delay between the sending of data, I mean, requests are back.
It's now import time now to guarantee your application will to create a socket.
For that, I am going to create a circuit.
This is equal to.
So good, not so good, also so good dog here for this August function takes two barometer's aelfwine
it, which means I want to send this packet with an IP address of question four and also.
So extreme, which means that I want to send this other TCAP, it performs through a handshake and then
it is another DCB one.
So I'm going to connect.
No.
Kind of takes it as an argument and so on, we need to go IBRD and the Bornholmer.
Come on, 387.
No UFOs, no how are we going to talk to that application through our Python program?
No, I don't want to lose Bernat first thing and Sarver's sensible to us when we can have the right
to see that banner and see what it is.
And we need to get this message out.
You will see the solution to actually are in the knowledge, but in the Bernat.
And now let's close the subject and let's see if this works, OK, now put welcome those who are with
her and for her or good a tea and a tea by sending us out there with the help.
After losing the Bernard.
We can tell you the calls to help.
Again, we need to resume, and it's not a scandal program.
As you can see, the program is telling us these are the very comments that the program accepts help
or flow on in the value or for two and three or four and value and so on, up toward 14 in the world.
And finally, the common good, generally, this is the normal way to the production tax.
You can also use Netcare to just to know what, commence the production excerpts.
Now, I'm going to do more these things.
First, we will send one packet with our fuzzing letter and then we iterate order to send multiple times,
OK?
Now, since we have received the burner, what we are going to do is we want to say junk is equal to
250.
No, I want to say interesting one is you need to encode these values if you are using Python three
by three, you need to send it as only bytes you cannot send.
The soccer data has no strings or something.
Rauluni Cordasco loses, it does not allow Unicode only to lose, and that's why it's No.
There's not enough.
Let's bring down this.
Barer with.
But it's.
Gabeira sent with this number of late night format of.
Now, what we're going to do is we put the gun and, no, the second is going to be OK now I'm sending
15 a number of years to the application.
It's just better than 150 words and it's open this and you can see there are a lot of connections opening
and closing, but our application did not crash.
Now, repeat the same process with Awilo.
So while true.
No, I'm going to repeat this entire process until I get an error like.
Soccer did not character connection refuse.
It means that when our position crashed, when you are going to Canada, when the application is crushed,
you get the connection.
All right.
I'm going to try.
Try sending the data and whenever any exceptionalities, you break the program simply.
Also print.
Application could actually by the format of code No.
Another thing we need to do is we need to increase, the code says.
All right, I think this is our fuzzing symbol for there has been completed.
I think so in order to prove you are the goal, we are creating this order and we are connecting to
the application.
And then we are receiving something back which we don't care.
And we are creating the some junk page using the first conduce fifty.
It means plus we are sending 50 years.
And then we are increasing two hundred, increasing hundred, one hundred and.
Then again, in 150 enemies, in 150 words of fear, and then if A did not crash again, we look for
this blog and news and again, 250 ways, if the application has crashed, then we get this attention
and the Sprint segment will get the good and the bad and talk it will close.
So I think this is this is the correct one.
Let's see if any rescue you get had seen this.
OK, OK, I'm sorry I did not pull this.
Or from such a dumb.
So that precautionary I accept there is all for one space and the junk and we also put.
I am not sleep of said, you know, point three milliseconds in order to run the program.
So I know her application has been crucial and you can see a two one five zero waste our Python program
cannot send anywhere anymore because there is no response from it.
There is no actual connection to it.
You can see the plane has crashed here, you can see are our four years here.
You can also see the AP, which is the instruction pointer, and also EKG's and E.S.P has been over
400 years.
Now, if I close the program.
Now, let's let me run the program again normally.
No, I will cannot do it using normal Python script.
And I know I was and only the junk one two on Fraser Daltry.
Or else I can just modify the on secondary records to do.
I call.
Less than three.
Now, I'm going to send Daltry because we know the number of flights reduced to zero and you can send
this can be a complex one.
Sorry, did not run the program.
There you go.
You can definitely see we send our Bofur with two one five zero years and it never called for.
In this way, we can force the application for any wonder these are crashes and then we can examine
the application memory to see our data is there.
Remember one thing, not every crash leads to a inability, but sometimes a crash can restore vulnerability,
but not other times.
That's all for this week.
I hope you have enjoyed this.
See you in the.