Foro de elhacker.net

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
int main (int argc, char *argv [])
{
	char buffer [8];
	strcpy (buffer, argv [1]);
 
	printf ("You said : %s", buffer);
	return 0;
}

*** stack smashing detected ***: ./code terminated
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x48)[0xb77d4ef8]
/lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x0)[0xb77d4eb0]
./code[0x80484b6]
[0x41414141]
======= Memory map: ========
08048000-08049000 r-xp 00000000 08:06 5267571    /home/juanra/Escritorio/code
08049000-0804a000 r--p 00000000 08:06 5267571    /home/juanra/Escritorio/code
0804a000-0804b000 rw-p 00001000 08:06 5267571    /home/juanra/Escritorio/code
09d9d000-09dbe000 rw-p 09d9d000 00:00 0          [heap]
b76d6000-b76d7000 rw-p b76d6000 00:00 0
b76d7000-b7833000 r-xp 00000000 08:06 353269     /lib/tls/i686/cmov/libc-2.9.so
b7833000-b7834000 ---p 0015c000 08:06 353269     /lib/tls/i686/cmov/libc-2.9.so
b7834000-b7836000 r--p 0015c000 08:06 353269     /lib/tls/i686/cmov/libc-2.9.so
b7836000-b7837000 rw-p 0015e000 08:06 353269     /lib/tls/i686/cmov/libc-2.9.so
b7837000-b783a000 rw-p b7837000 00:00 0
b783b000-b7848000 r-xp 00000000 08:06 335937     /lib/libgcc_s.so.1
b7848000-b7849000 r--p 0000c000 08:06 335937     /lib/libgcc_s.so.1
b7849000-b784a000 rw-p 0000d000 08:06 335937     /lib/libgcc_s.so.1
b784a000-b784d000 rw-p b784a000 00:00 0
b784d000-b784e000 r-xp b784d000 00:00 0          [vdso]
b784e000-b786a000 r-xp 00000000 08:06 335886     /lib/ld-2.9.so
b786a000-b786b000 r--p 0001b000 08:06 335886     /lib/ld-2.9.so
b786b000-b786c000 rw-p 0001c000 08:06 335886     /lib/ld-2.9.so
bfcbe000-bfcd3000 rw-p bffea000 00:00 0          [stack]
You said : AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACancelado