A format-string leak defeats the canary and PIE, then a buffer overflow redirects execution to a built-in flag-printing function.A format-string leak defeats the canary and PIE, then a buffer overflow redirects execution to a…
x86
8 posts
- Finches in a Pie
- give_away_1
A 32-bit buffer overflow and a leaked
systemaddress drive a ret2libc call that runs /bin/sh via a string found in the provided libc.A 32-bit buffer overflow and a leakedsystemaddress drive a ret2libc call that runs /bin/sh… - [PoP:Rev] Reverse Engineering x86 ELF: 0x1
How a function's prologue, return value, and epilogue look in disassembly, through a program that only returns 0.How a function's prologue, return value, and epilogue look in disassembly, through a program that only…
- [PoP:Rev] Reverse Engineering x86 ELF: 0x2
How local variables and function calls look in disassembly, through a program that adds three integers from user input.How local variables and function calls look in disassembly, through a program that adds three integers…
- [PoP:Rev] Reverse Engineering x86 ELF: 0x3
How conditionals look in disassembly, through a program that tells whether its input is more than, less than, or equal to 10.How conditionals look in disassembly, through a program that tells whether its input is more than…
- [PoP:Rev] Reverse Engineering x86 ELF: 0x4
How loops look in disassembly, through a program that prints the length of its input.How loops look in disassembly, through a program that prints the length of its input.
- [PoP:Rev] Reverse Engineering x86 ELF: 0x5
How structs look in disassembly, through a program that reads a name and age into a struct and prints them.How structs look in disassembly, through a program that reads a name and age into a…
- rev_rev_rev
Reversing a 32-bit ELF that reverses its input, transforms it with bitwise operations, and NOTs it, then brute-forcing the flag one character at a time.Reversing a 32-bit ELF that reverses its input, transforms it with bitwise operations, and NOTs it…