Answered: uffer where your exploit goes. Give…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Gadgets that pop values from the stack into a register are especially useful, as the value to be loaded in the register can be put on the stack as part of the exploit, providing control over what gets loaded into the register. Suppose there is a gadget popq %rdi; ret at address 0x0000555555555473. Your goal is to place the value 0xfeedface00000000 in register %rdi and then transfer control to a function called foo, which is at address 0x000055555557960e. The return address from the vulnerable function (i.e., the function whose buffer you will overflow with your exploit) starts exactly 48 bytes from the start of the buffer where your exploit goes. Give your exploit string in the form of input to hex2raw. (Hint: The information you need is all here; you just have to figure out in what order things should be in the exploit string. It will probably help to draw a picture.)

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The question asks for the construction of an exploit string in Python. The goal of this exploit is to load a specific value into the `%rdi` register and redirect program control to a designated function address. It provides details about the relevant addresses and the required order of elements in the exploit string.

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