> I discover that the shellcode change during his execution. Yeah, some
> bytes of the shellcode change while is running. Why?? How can avoid
> this?

The problem here is that some bytes in the shellcode are converted into
0x20. Namely, 0x0b (execve syscall number) is converted into 0x20 (gtty

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========================================================================

= Winamp - Buffer Overflow In IN_CDDA.dll
=
= Affected Software:
= Winamp 5.05, 5.06
=
= Public disclosure on November 24, 2004
========================================================================

== Overview ==

Hat

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========================================================================

= SecureCRT - Remote Command Execution
=
= Vendor Update:
= http://www.vandyke.com/download/securecrt/index.html
=
= Affected Software:
= SecureCRT V4.1, V4.0 (and probably lower)
=
= Public disclosure on November 23, 2

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Hi, I'm new in this world. I discover several buffer overflow problems in some
of our home-made apps. I try to exploit this but I have a rare problem.

--- Vuln Code (post2.c) ---
#include <stdio.h>
#include <string.h>
int main()
{
void split(char *line);
char line1[500],line2[500];
strcp

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========================================================================

= Winamp - Buffer Overflow In IN_CDDA.dll
=
= Vendor Update:
= http://www.winamp.com/player/
=
= Affected Software:
= Winamp 5.05 (only version tested)
=
= Public disclosure on November 23, 2004
========================

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Quick question, we just allowed our son to start online gaming with his
X-Box.
My wife is using a XP laptop through our home hardwire VPN and noticed a
problem on her system in that Outlook has something running in
background and won't allow for any type of shutdown. My 98win old AMD
system o

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Hi Everyone,

I thought that people here might be interested in this new list of
Oracle default usernames and passwords.

I have just added a page to my site that lists 596 default Oracle users
and their passwords. The list is available as HTML, CSV, SQL insert
statements to load the data into a ta

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Hi all,

This one got rejected by phrack and I couldn't be arsed to rewrite it so it would make the next edition:
"Writing IA32 Restricted Instruction Set Shellcode Decoder Loops" by SkyLined
( http://www.edup.tudelft.nl/~bjwever/whitepaper_shellcode.html )

The article addresses the requirements fo

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Hi everyone,

We would like recommendations of books, links and
articles related secure programming, that describes
buffer/integer overflow, race conditions and other
stuff regarding programming errors that can cause an
vulnerability.

Please, send me direct to me the suggestions.

Thanks in advance

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Hey folks,

I'm sorry if this question was asked before in this mailing list, but
I couldn't find useful information about it everywhere else.

Currently, I'm working on Linux 2.6.9-1.667 under Fedora Core 3, and
the way to trigger on/off the stack protection is by setting/unsetting
"/proc/sys/kerne

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> I am trying to learn how to write a basic stack buffer overflow on
> linux. The program that I am exploiting is:

Hey eip,

I'm not sure what's happening here: have you changed something in the
environment between the two vulnerable program executions? 0xbffff5b4 is
far different from 0xbfffe43

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On Wed Nov 10 2004 runixd wrote:

> Depending on your version, options may very, but you should be able to
> disable stack randomization by setting
> /proc/sys/kernel/exec-shield-randomize to 0
> "echo 0 > /proc/sys/kernel/exec-shield-randomize"

> and you can disable exec shield in /proc/sys/kernel

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Hi,

I have put together some info on using the TEB (Thread Execution Block) Buffer and libc for exploiting NON-EXEC STACK Win32 environments. I havent come across any major public exploit using this method nor much of information on the same. The shell coders handbook was of great help though.T

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Ok, let,s go. Im gonna describe the method that i use to find addresses
and how to exploit then, i wrote the proper exploit for this vulnerable
program in perl, i hope you understand (i dont code in C)

Lets see some gdb :

(gdb) r `perl -e 'print "A"x268'`
The program being debugged has been starte

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I am trying to learn how to write a basic stack buffer overflow on linux. The program that I am exploiting is:

void main (int argc, char **argv[]) {

char buffer[256];

if (argc <=1) {

printf("You did not enter any data\n");

exit (0);

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