suezawa/exploit-example1 repository overview

docker run --rm -it suezawa/exploit-example1 bash

./hello

# see all system calls
strace ./hello

# see write only
strace -e trace=write ./hello

file hello.s
cat hello.s

file hello.o

file hello

file static_hello

# ldd hello
	linux-vdso.so.1 (0x00007ffdbc983000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ff9c6614000)
	/lib64/ld-linux-x86-64.so.2 (0x00007ff9c6a05000)

# ldd static_hello
  	not a dynamic executable

# Assembly
gcc -S hello.c -masm=intel -o hello.s

# Object file
gcc -g -c hello.c -o /hello.o

# Dynamic Link ELF
gcc -fno-stack-protector -z execstack hello.c -o /hello

# Static Link ELF
RUN gcc -static -fno-stack-protector -z execstack hello.c -o /static_hello