Full Disclosure mailing list archives

Re: Sendmail/Postfix FORWARD Remote Exploit


From: "Joey Mengele" <joey.mengele () hushmail com>
Date: Thu, 13 Dec 2007 23:47:48 -0500

Dead Fred Diggler,

You are not as much of an expert as you may have thought. Any 
foolish teenager can break software, but it takes a computer 
science degree to design software. For example, I have found a 
design flaw vulnerability (DFV) in your exploit. By passing a 
specially crafted argument to the program, an attacker can execute 
arbitrary code with Diggler privileges.

I have also uncovered several race conditions. If one executes the 
command 'pkill -11' on the program, for example, memory corruption 
seems to occur, and most modern operating systems output the buffer 
overflow code:

Segmentation fault

I hope you consult with experts before being so hasty to post your 
attempt at a technical rant. LOLOL.

J

On Thu, 13 Dec 2007 23:20:21 -0500 Fredrick Diggle 
<fdiggle () gmail com> wrote:
You should post this to milw0rm as it can always use quality 
exploit code
like this. I also have some priv8 code which I would like to 
disclose which
is the same type of vulnerability.

/*
* Author: Fredrick Diggle
* Vuln: execve system call allows arbitrary code execution
* Status: VERY PRIV8
* DO NOT RELEASE OR FRED DIGGLE WILL EAT YOUR FAMILY
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#define INFINITY 73
#ifdef DIGGLEISAWESOME
int main(int argc, char **argv) {
  if (argc < 2) { fprintf(stderr, "usage: %s [command to 
run]\n\tPRIV8 Fred
Diggle 0day\n", argv[0]); return INFINITY; }
  execve(argv[1], &argv[1], 0);
}
#endif



On Dec 13, 2007 8:57 PM, kcope <kingcope () gmx net> wrote:

exploiting "features"

(see attached)

- -kcope / 2007

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