[SOLVED] Binexp 01_basic_overflow_1 Exploit Script Spring2026 скачать в хорошем качестве

[SOLVED] Binexp 01_basic_overflow_1 Exploit Script Spring2026

TO GET THIS SOLUTION VISIT: https://www.ankitcodinghub.com/produc... --- Email: ankitcoding@gmail.com WhatsApp: +1 419 877 7882 Get a quote: https://www.ankitcodinghub.com/servic... We deliver fast, professional, and affordable academic help. --- Description Description 5/5 - (1 vote) Ol_basic_overflow_l Step A.1 Before diving in, let’s ensure that our project environment is appropriately configured. 1 This project utilizes the same virtual machine (VM) that is used for other projects within CS6035. If you’ve already got it configured, great! If not, see the respective “Course VM Download Thread” post in Ed Discussion for instructions. 2 Please follow the instructions in Canvas (navigate to “Assignments” › “Binary Exploitation”) for login credentials to the VM as well as the requisite commands for fetching the project files. 3 Navigate to /home/binexp open the user.txt file (this file will be empty initially) and enter your nine-digit GTID. If you do not know your GTID, you should be able to discover this through https://gtid.gatech.edu. Note: if you fail to set this, no responses you submit to Gradescope will be accepted as correct. Below is a brief summary of the project’s contents: json: This is the one (and only) file you will submit to Gradescope to have your work be evaluated. See the Submission tab along the left-hand side of this page for additional guidance concerning project submission guidelines. project\*: This is the directory and subdirectories that make up the project. Each subdirectory reflects an individual challenge within the project and contains all of the files necessary for solving that particular challenge. We have included a project\tutorial\ subdirectory that has amplifying guidance material to help get you oriented to the projects’ techniques. The contents 2/9/26, 12:07AM                                                                                                                            Stage A – SetupNalidation — (1 flags) I CS 6035 of project\tutorial\ are not mandatory or graded – you should not include any practice work results you perform there in your project_binexp.json file. project\*\flag: For most of the challenges, this is the compiled binary you’re attempting to If it isn’t, the student instructions for that particular challenge will say so. project\*\flag.c : This is the source code for the flag binary, above. This is intended to be a useful reference to aid in identifying and crafting your exploits of flag . project\*\e.py : This is a python3 script with some templated skeleton exploit code. You are welcome to use/ignore this as you see fit. project\*\e.py.bak: This is just a copy of the initial state of py in case you accidentally delete it or wish to revert back to start. Simply copy from this file to get a clean-slate e.py. In all of the projects’ binaries, your goal is to have the binary read from /proc/flag! Most of the time, this is via a system() call like: system(“cat /proc/flag”); However, sometimes it’s not that simple – carefully analyze your source code within each challenge to figure out how the binary is meant to read from /proc/flag . Step A.2 Otbasic_overflow_l [0 pts] INSTRUCTIONS Now, let’s take a look at our first introductory challenge to ease us into the exploit development process at a high-level: Ol_basic_overflow:l. We’re going to walk you through this one just to give you a sense of what’s to come. In this task, we’re looking at a simple buffer overflow. A buffer overflow occurs when input exceeds the expected bounds it’s intended to write to, thereby spilling outside those bounds and overwriting other areas of memory. Generally speaking, this kind of incident leads the running process to crash. However, a crafty (and determined) malicious actor may be able to get the process to do something else altogether! If we were to review the source code for our binary (flag.c), we could start by tracing the code execution flow starting at main() , which is the starting point for all C program code. cat –/project/Ol_basic_overflow_l/flag.c 1 The main() function starts by initializing the variable make_me_not_zero to 0. 2 It then declares an int buffer of size 300. 3 There’s a printf() call, which would write some instructions to the user to stdout . 4 The process then blocks for user input with scanf() , writing the input to buffer. 5 There’s then a if-conditional check to see if make_me_not_zero is still 0. If it is, the process terminates; if it isn’t, we arrive at our desired destination in the binary which reads our flag out for us. Intuitively, we can start to build our attack chain in reverse: We want to get t