Shellcode is a piece of code performs specific action Shellcode is written in ASM Shellcode is architecture specific, so it is non portable between different processor types Shellcode is typically written to directly manipulate processor registers to set them up for various system calls made with opcodes When the ASM…

A buffer overflow occurs when the size of data exceeds the storage capacity of the memory buffer As a result, the program will try to write the data to the buffer which overwrites nearer memory locations Instruction Pointer(IP), Base Pointer(BP) C and C++ are two languages that are highly susceptible…

SPAWN SHELL USING SIMPLE GOT OVERWRITE UNDERSTANDING BASICS: PROCEDURE LINKAGE TABLE (PLT) Procedure Linkage Table(PLT) is a “read-only” section It is responsible for calling the dynamic linker during and after the program runtime to resolve the addresses of the requested functions During compilation we cannot mention these addresses because the function addresses of each system is unknown and shared object is also…

Ret2Libc — -> Return To LIBC LIBC The term “libc” is commonly used as a shorthand for the “standard C library”, a library of standard functions that can be used by all C programs (and sometimes by programs in other languages). For more on LIBC METHODOLOGY Whenever a function is called by a program, the arguments required for…