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Are you are experiencing a similar issue? Get a personalized answer when you ask a related question. We will never share this with anyone. By clicking you are agreeing to Experts Exchange's Terms of Use. Expand your skills with this month's free Premium course. View April's Free Course. Sign up today x. Question priority can be upgraded with a premium feature. I'm binary bomb walkthrough computer sciences major student, I have an assignment to defuse binary bomb and I currently binary bomb walkthrough at Phase 2.

I spent more than 10 hours in trying to solve this binary bomb walkthrough but I still not able to solve it. I explode the bomb 5times. So, I'm hoping anyone out there help me with this phase. The codes are below. What I know thus far is the result will be 6 numbers. Ok, that's a start. The next step, is to figure out where those 6 numbers binary bomb walkthrough end up in memory hint: Binary bomb walkthrough you know where they are in memory, you can start figuring out what the code does with those numbers, and what limitations it imposes on the possible values of those numbers.

Just take it one step at a time, and post your progress here. If you're stuck somewhere, just ask, and we'll help you out. Thanks Infunity08 for replying my question. However, maybe Binary bomb walkthrough too dump in GDB and machine language.

I have no idea how to figure out those 6numbers' memory. Would you mind to give me some idea? Do you know how function calls work in assembly? How parameters are passed? How results are returned? Do you know sscanf? And how it works? What its parameters are? Honestly speaking, I don't. I just learnt assembly language last week. And so, I'm totally lost in assembly language. Would you mind to guide binary bomb walkthrough here? Do you know any programming language?

Yup, I do know C and Jave. Well, from what I know about the codes above is: I need to enter 6 numbers. And every number will be the last number plus four, from line below: And I don't know how to get the first number. Good, we'll use that as a starting point then.

In assembly, before calling a function, binary bomb walkthrough arguments are placed on the stack in reverse order in the binary bomb walkthrough codethen the function is called.

The return value is placed in the eax register. So, given that information, can you figure out where the 6 numbers will be placed in memory? The 6numbers will be placed in d4. So, I'm guessing the answer would be: But the bomb binary bomb walkthrough exploded. That's the start address for the sscanf function.

Remember that the arguments are pushed onto the stack before the function is called. What does the code do before the sscanf function is called? Then call the sscanf function. To check if the arguments if more than 5 numbers. If there are 6 or more numbers, it will return to phase 2.

Else, it will explode the bomb. This is what I understand from the code below: This is what line below binary bomb walkthrough However, I found out one line of code: Since if it's binary bomb walkthrough 1, the bomb will be exploded. However, it doesn't work. That's just one of the arguments. Specifically the first argument the input string. There are more arguments for sscanf. The second argument is the format binary bomb walkthrough.

And the next argulents are the addresses of where the data will end up. So, where will the 6 numbers be placed in memory? Well, I'm not sure. What do you means with "There binary bomb walkthrough more arguments for sscanf". Infinity08 Infinity08 earned total points.

Let's go back to my earlier post http: If you don't know what it does or how it works, you can read through the reference link I provided there. Knowing how sscanf works, you'll see that more than 1 argument needs to be passed to it, in order for it to work. And, since arguments are placed on the stack, one at a time, just before the function is called, it should be easy to find out what those arguments are.

You found the first binary bomb walkthrough already here: It is copied into the eax register, and from there, it's placed at the top of the stack the esp register always points to the top of the stack.

What are the other arguments passed to the sscanf function? Question has a verified solution. Sign up with Google. Sign up with LinkedIn. Sign up with Facebook. I would like to receive news, updates and offers from Experts Exchange. OWA keeps redirecting back to login page. This article involves a discussion about issues people have when it comes to Client Access in relating to Load Balancing in an Exchange environment which we had ourselves, along with a solution I found to the problem.

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Are you are experiencing a similar issue? Get a personalized answer when you ask a related question. We will never share this with anyone. By clicking you are agreeing to Experts Exchange's Terms of Use. The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range. One of a set of tools we're offering as a way of saying thank you for being a part of the community. Expand your skills with this month's free Premium course.

View April's Free Course. I need a solution. Sign up today x. It looks like I need to pass two inputs and the inputs can vary. The rest is pretty much what happens: Now just put some actual values in your description of what happens, and figure out what the input needs to be ;. Is the what is happening and upon doing so I would get the needed second value? Never seen this before, not even in my textbook. Watch how eax changes. But the code is pushing them onto the stack in reverse order. You can use your debugger to see where both values are put.

It swaps around the two arguments. You're moving along nicely now ;. Question has a verified solution. Sign up with Google. Sign up with LinkedIn. Sign up with Facebook. I would like to receive news, updates and offers from Experts Exchange. Tackle projects and never again get stuck behind a technical roadblock. Covered by US Patent. Privacy Policy Support Terms of Use.