Re: Changes in Aleph1 Smashing the Stack...

[Alexander Klimov <alserkli () inbox ru>]

On Fri, 26 Nov 2004, Florencio Cano wrote:
> I'm studying how buffer overflows work. While reading the famous article
> by Aleph1 Smashing the Stack for Fun and Profit I have got some problems.
> I think my problems are caused by changes in new versions of gcc so,
> where I can find information about how changes in new versions of gcc
> affect the stack when a function are called or how new versions affect
> the programming of bofs.

The ultimate source of such information is source code itself. Well, I do not
propose to read gcc's source code :-) but rather use gcc -S to generate
assembler code of exploited program, alternatively you can use disassembler
facilities to examine binary file (gdb's disass or objdump's -d).

You should also check different issues: probably you OS has non-executable
stack, or gcc is patched to generate overflow checks.

-- 
Regards,
ASK