ZH3R0CTF 2020 Binary Exploitation

Command-1 Category: Binary Exploitation Points: 227 Description: Given: command_1 Writeup To start, I went ahead and ran the function to see what we are dealing with. $ ./command_1 Please enter your name: itsecgary Hello itsecgary ------------------- 1.) Add command. 2.) Run command. 3.) Edit command. 4.) Exit. Looks like we have a menu with some options. After looking through some of the options and playing with the options in the menu, I opened it up in Ghidra to do a closer analysis of what is happening....

June 18, 2020 · 8 min · Me